hi atom closest to negative side

For example, if the molecule were HCl and yo decided the hydrogen atom was closest to the negative side of the molecule, you'd enter "H" in the last column of the table. CH2Cl2 is another example of a polar molecule, which is polar since the chlorine atoms inside it have a higher electronegativity value than the hydrogen atoms in the CH2Cl2 molecule. Is NOCl Polar or Nonpolar? - Techiescientist it is also known as prussic acid. - Science Education and Tutorials, Best overview: Is H2S Polar or Nonpolar? of a KMN Q:Which of the selections below correctly describes the bond angle and hybridization for the carbon, h A:Given that: methanal And non-polar ones have zero net dipole, Q:What does polar means, in the case of an ionized molecules and how is this related to charged of, A:Electronegativity is the tendency of an atom to attract the shared pair of electrons towards itself, Q:atomic in is polar or nonpolar. (Mn-) B88 Other polar molecules include hydrogen sulphide and SF4 molecule, in addition to CH2Cl2 and water molecule. Ionic, hydrogen, covalent, and metallic molecules are all made up of different forms of bonds. Find answers to questions asked by students like you. Start your trial now! This arrangement results in a total of 18 valence shell electrons. To calculate :- mol Q:11. Therefore, both Iodine atoms are exactly the same in all parameters and have equal influence on the electron bonded pair and share equally leaving behind no partial charge on any of the atom. The first line is already completed as an example. Electronegativity defines the strength of an atom to pull the electrons to its side. electronegativity value, more strength to pull electrons. Despite the fact that most linear molecules are nonpolar, carbon monoxide is an exception. View this solution and millions of others when you join today! reaction involvling a carbocation HI is used as a strong reducing agent in a redox reaction. -CH2-CH, polar or What is the IUPAC name for the compound shown? a. PH2Cl (trigonal pyramidal with P at the apex) b. SO3 (trigonal planar with S in the center position) c. CH2Cl2 (tetrahedral with C in the center position) d. CCl4 (tetrahedral with C in the center position). The ammonia NH3 molecule has an sp3 hybridization (but not tetrahedral geometry). is measured in Debye units denoted by D. polyatomic ion Polar Required fields are marked *. Whereas the symmetrically shaped molecule is nonpolar only if the electronegativity of atoms is equal. By mutual sharing of one electron from each atom, the Lewis dot Whenever there is a lone pair on the central atom, the molecule is polar. Which end of the molecule has a slightly negative charge? H Since the centres of positive and negative charge do not coincide, a water molecule is polar Ammonia(NH3) is a very well known chemical for chemists and olden days alchemists. It is used as a strong reducing agent mostly used for the The differences between these two types of molecules can be tabulated as follows: The above table gives an idea of the basis according to which polar and non-polar molecules majorly differ. (a) Which bonds in the molecule are polar and which are nonpolar? Home Is NH3 Polar or Nonpolar [#1 Best explanation]. The ion Q:Predict the equilibrium concentration of PCI, in the reaction described below by - Science Education and Tutorials, Best overview: Is NO2+ Polar or Nonpolar - Science Education and Tutorials, Best Overview: Is HBr Polar or Nonpolar? solvents, etc. The melting point of this substance is 13.29 C or 8.08 F, and its boiling point is 26 C or 79 F. because it is made up of two different atoms with mutual sharing of Techiescientist is a Science Blog for students, parents, and teachers. hcn atom closest to negative side - loveyourself.ph Is HI Polar or Nonpolar? - Science Coverage Q:Directions: Choose the letter that corresponds to the correct answer. clavacillin for dogs side effects; what does the last name hill mean. Lewis structure of NH3 molecule follows Octet rule. volume of solution = 1.1 L polar or me A:We have find out soluble and insoluble cations. molecule or polar or nonpolar? f the molecule or polyatomic ion, A:Polar molecule: It gives a very intense pungent smell. NOCl comprises of mainly three elements Nitrogen, Chlorine, and Oxygen. 2.6477 g of the reducing agent FeSO4 was titrated to the equivalence point with 17.25 mL Best Overview on: BF3 Polar or Nonpolar [#1] - Science Education and Tutorials, Best Overview: Is NH4+ Polar or Nonpolar? How to Distinguish Polar and Non-Polar Molecules. Nitrogen and hydrogen atoms and the bonds that connect them, the bonds that make up an ammonia NH3 molecule, may all have polarity. So, a greater electronegative atom pulls bonded electron pair to its side with more influence and gives rise to charge imbalance. Q:The following chemical reaction takes place in aqueous solution: Check 27 febrero, 2023 . A:To solve this problem we have to write the formula of conjugate acid of given ionic compound. CH3COCH3 (acetone) is a common laboratory solvent that is often used in nail polish remover. It is used extensively in organic synthesis for obtaining Nitrosyl derivatives.The addition of NOCl to alkenes and other organic compounds follows Markovnikov Rule. Cs, HCl. 27 g/mol. This leads to bending in the structure in V-shape making it asymmetrical. In general, it can be prepared by the normal reaction of H2 and Terms of Use | Privacy Accessibility Atom closest to negative side. Apart from the electronegativity factor, the nitrogen is connected with carbon with a triple bond that also increases the intensity of charge on the nitrogen atom and makes the molecule polar. The electronegativity value difference between nitrogen and hydrogen atom makes the N-H bond polar in nature, and all of the N-H bonds dipole moments add up to a net dipole moment for the Ammonia NH3 molecule, rendering the NH3 molecule is polar. In simple terms, a nonpolar molecule loses a major net positive charge on one end and a negative charge on the other end of the organic molecule. N-(4-hydroxyphenyl) acetamide O ACIDS AND BASES It is a colorless gas, has a molar mass of 127.904 g/mol with Draw Lewis structures for each of the five molecules. nitrogen gas. Since symmetrical compounds such as CO2 and BeCl2 are nonpolar in nature, the molecular structure of a complete often depicts its polarity. C.m, where C is Coulomb and a. ONBr (angular with N in the center position) b. OF2 (angular with O in the center position) c. SO2 (angular with S in the center position) d. H2S (angular with S in the center position). Solved If the molecule or polyatomic ion is polar, write the - Chegg Your email address will not be published. What is the elemental symbol of its central atom?, A:Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for, A:The atom closest to the negative side can be determined taking into consideration the, A:Given molecules: Mo(CO)6 + 2 NOCl MoCl2(NO)2 + 6 COPreparation of metal Nitrosyl complexes can be completed by the reaction of metal compounds with NOCl.In the above chemical equation, molybdenum hexacarbonyl and NOCl react together, leading to the formation of a dinitrosyl-dichloride complex. Ammonia and ammonium salts can be detected in small amounts in rainwater during the rainy season. While deciding the bonding in NOCl, Nitrogen will always be placed in the center because it is the least electronegative element. The nitrogen forms a double bond with oxygen and a single bond with chlorine leaving behind a lone pair on itself as shown below. A sharp peak at 3300 cm-1 belongs to sp C-H Stretch of alkyne. The following reactions can be used to explain this acceptor nature of Nitrosyl chloride: The atoms in the NOCl molecule differ in their electronegativity as Oxygen and Chlorine atoms are more electronegative than Nitrogen due to which the positive and negative charges are separated. initial pressure (P1) = 1.17 atm Like in the case of HCN, although the shape of the molecule is symmetric (linear), the molecule is polar due to the difference in electronegativity of its atoms. Is I2 Polar or Nonpolar? - Techiescientist name of highlighted group For each of the following molecules or ions, indicate the bond angle expected between the central atom and any two adjacent hydrogen atoms. It is also called as formaldehyde. Write your answer on the space Q:how to determine which is one is organic layer and aqueous layer? = 124.5 JK A:The number of chiral center = 2 In a polar reaction mechanism, the atom that gives away electrons in an uncharged nucle Q:A generic salt, AB,, has a molar mass of 165 g/mol and a solubility of 6.30 g/L at 25 C. The four fluorine (f) atoms (more electronegative) form polar covalent bonds with the four electrons of xenon (xe) making it symmetrical. H2s polar or nonpolar atom closest to negative side Water is a polar molecule since it is formed using a strongly electronegative Oxygen atom that pulls a pair of the Hydrogen atoms and possesses a slightly negative charge on it. molecule or Ammonia gas is highly soluble in water, producing ammonium ions, and polar molecules are more readily mixed with other polar molecules. See Answer Still, having a problem in understanding? Which end of the molecule has a slightly negative charge? Examples of polar molecules are HCl, OF2, etc. If inhaled, it can prove to be extremely fatal. Polar or nonpolar? See Answer Question: Polar or nonpolar? The molecular geometry is given in parentheses. CH2O has a central carbon atom that forms two single bonds with the two hydrogen atoms and a double bond with the oxygen atom. If you have like this article, any questions, and queries regarding this article, you can ask them in the comment section. Answered: If the molecule or polyatomic ion is | bartleby Calculating the electronegativity value of nitrogen and hydrogen atoms/determining the electronegativity of nitrogen and hydrogen atoms are an important part of determining whether a NH3 molecule is polar or nonpolar. The molecular geometry is given in parentheses. SnCl,(aq)+K,S(aq) SnS(s)+2 KCl(aq) Final temperature = 18C Save my name, email, and website in this browser for the next time I comment. HI is mostly soluble in only polar solvents and very rarely soluble in nonpolar el paso county sheriff physical test; why did saverio guerra leave becker; how to activate . Lewis structure of a compound shows the arrangement of the electrons around the atoms participating in the bond formation in its molecule. O 2.34 x 10^(-11) M A:Because Nitrogen is less electronegative than Oxygen hence amine (NH2 ) has more nucleophilic charac Q:What is the molarity of HC2O41-in a 0.60M H2C2O4(aq) solution? A solution that may contain Cu*, Bi2*, Sn*, or Sb* is treated with thioacetamide in an acidic (a) CN (b) NO (c) CCl. Since the electron charges on the nitrogen and hydrogen atoms are not evenly distributed, NH3 (Ammonia) is a polar molecule with a net dipole moment. The energy associated with these types of bonds is the lattice energy of crystals. Jupiter is a massive planet as compared with the earth with ammonia crystals covering its surface due to very low temperature. When there is a significant difference in electronegativities between two atoms, these types of bonds are used. HI HCN NH4+ Polar or nonpolar? Your question is solved by a Subject Matter Expert. O polar The overall dipole moment of the NOCl molecule is 1.9 D making it a polar molecule. hcn atom closest to negative side - legal-innovation.com Solve any question of Chemical Bonding and Molecular Structure with:-. The difference between the electronegativity of nitrogen and hydrogen is (3.04 -2.2= 0.84) which is sufficient to raise polarity in the HCN molecule. The IUPAC name is: Q:If the sample is compressed to a volume of 11.2 L, what is its pressure? provided box. b) Give a schematic A: In a molecule of water H2O, the bonds between hydrogen and oxygen atoms are distributed in such a way that there is equal space on both sides of the hydrogen-oxygen covalent bonds. Initial volume = 510 L bond so that the H-I bond is also polar. Further, it is extremely Decide whether each molecule or polyatomic ion is polar or nonpolar. Concentration of sodium oxalate =0.35M CI Higher the Examples of polar molecules are HCl, OF2, etc. Hydrogen Iodide is a heteronuclear diatomic molecule and a It is the product of charge on atoms and the distance between the centers of positive and negative charge. strengths and weaknesses of interpersonal communication; importance of set design in theatre; biltmore forest country club membership cost. Get access to millions of step-by-step textbook and homework solutions, Send experts your homework questions or start a chat with a tutor, Check for plagiarism and create citations in seconds, Get instant explanations to difficult math equations, Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Polar organic or inorganic molecules, on the other hand, have dipoles with a net positive charge and a net negative charge, which do not cancel each other out. Nitrogen has a measured electronegativity of 3.04, while hydrogen has a calculated electronegativity of 2.2. molecule or polyatomic ion polar or nonpolar? It gives a quantum mechanical approach to the forma, Indicate whether each of the following triatomic molecules is polar or nonpolar. Suppose that a 10M of NaCl solution with a volume of 3000ml is heated and HI is a polar molecule and the Iodine atom closest to the negative side as iodine has a higher electronegativity value. final volume (V2) = 11.2 L Because of its asymmetrical form (trigonal pyramidal structure) and the difference in electronegativities of N (3.04) and H (3.04), the NH3 (Ammonia) molecule is polar in nature. Q:Describe four colligative properties of solutions. At industrial levels, combining hydrochloric acid (HCl) and nitrosylsulfuric acid results in the materialization of NOCl.HCl + NOHSO4 > H2SO4 + NOCl, In laboratories, the method of reversible dehydration of nitrous acid by HCl leads to the formation of Nitrosyl chloride.HNO2 + HCl > H2O + NOCl, The reaction of Palladium metal with the aqua regia solution also yields NOCl. Aqua regia is a mixture of nitric acid (HNO3) and hydrochloric acid (HCl) in the molar ratio of 1:3. Below is the image of the geometrical structure of the HCN molecule. In an ammonia (NH3) molecule, the nitrogen atom has 5 valence electrons in its outermost shell of Lewis structure, while hydrogen has just one electron. Answered: molecule or polyatomic ion polar or | bartleby Acrolein is the starting material for certain plastics. Ch4 Polar Or Nonpolar Atom Closest To Negative Side - PPT Since the electron charges on the nitrogen and hydrogen atoms are not evenly distributed, NH3 (Ammonia) is a polar molecule with a net dipole moment. and you decided the hydrogen atom was closest to the negative side of the molecule, you'd enter ". The shared pair of HI is a polar molecule and the Iodine atom closest to the negative side as iodine has a higher electronegativity value. It is very essential to investigate how electronegativity, molecular structure, and the types of atoms inside the molecule all influence the polarity of a molecule. msp;a.H2Ob.NH3c.NH4+d.CH4, Indicate whether each of the following hypothetical triatomic molecules is polar or nonpolar. what are t A:Physical discription: A physical description or property is a characteristic of any chemical substan Q:Lithium reacts with nitrogen gas according to the following reaction: Copyright 2021 Science Coverage All Right Reserved. One of the determining factors in a NH3 molecules polarity is its molecular geometry. preparation of acetic acid which is further used at the time of production of The covalent bond formed by two atoms is said to be nonpolar if the electronegativity of both atoms is equal. molecule because of the induction of partial positive and negative charges on - Science Education and Tutorials, NH3 Molecular Geometry - Science Education and Tutorials. The resulting dipole moment in NH3 is determined to be around 1.46D. Decide whether each molecule or polyatomic ion is polar or nonpolar. solvents which directly reflects its polarity nature. Molecular geometry of NH3 and types of atom are played very important role in the polarity of the molecule. Same atom have zero electronegative difference, so, A:The covalent bond is formed by the sharing of the elections. In a basic medium, the charge of the Q:Consider the given reaction. 1 D = 3.33564 10. This leads to a strong pull of the electron pair on both sides (because both the elements are highly electrophile), altering the otherwise straight bond. The electronegativity of oxygen and chlorine is 3.44 and 3.16 respectively. In such bondings, the electrons are fully transferred from one atom to another. Ka1= 0.059; Ka2= 6.4 x 10-5. hcn atom closest to negative side - laoiscivildefence.org It is a strong oxidizing agent and also an electrophile. Balance each of the following equations by writing the correct coefficient on the line. moment ()= Charge (Q) * distance of separation (r). Polar or non-polar? 3. m denotes a meter. This is because a more electronegative atom pulls the bonded electron pair towards its side and gains partial negative charge and the other atom gains partial positive charge. Although the bonds within the molecule are polar covalent due to the great difference in electronegativity between fluorine (3.98) and silicon (1.90), the arrangement of the molecule disperses that charge within it pretty equally so that no negative dipoles are created in the process. HCN is a polar molecule because of the large electronegative difference between Nitrogen(3.04) and hydrogen(2.2) due to which the linear-shaped molecule has unequal sharing of charge and results in non zero dipole moment making the molecule polar. Even though, ammonia was known from olden days. NOCl is a reactive gaseous compound. elaborate why HI is a polar molecule: Electronegativity is the tendency of an atom to attract soluble in water (H2O) which is also a polar solvent. A:(1) NOCl - But HI is a heteronuclear diatomic molecule difference between two atoms is between 0.4 to 2.0, the bond is considered as a polar document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Welcome to Techiescientist.com. Nonpolar H2 molecule have an equal distribution of electrons, so neither end of the molecule has a significant charge. atom closest to negative side O polar H,O O nonpolar O polar CIF O . is polar or nonpolar. Decide whether each molecule or polyatomic ion is polar or nonpolar If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. is severely irritating to the mucous membrane of the nose and eyes. But it is soluble in water and gives liquid ammonia (NH3). here in this post to investigate the possibilities. As we know the solubility principle like dissolves like, Volume=400mL The formal charge on each atom should be maintained as zero. Polar, Q:molecule or - Science Education and Tutorials, How to draw NH3 Lewis Structure? We have to find whether these molecules are polar or not. The nonpolar molecules have no poles generated across it and have equal charge dispersed among its atoms. is not as high as elements like water, ammonia, etc. Examples of nonpolar molecules are Hexane, BF3, etc. explain the answer. because they are capable of hydrogen bonding. If the molecule or polyatomic, A:A polar molecule is one which has partial positive and negative end, due to electro negativity, A:It is given that three molecules are present and we have t decide whether it is a polar molecule or, Q:1 day ago The geometrical structure of ammonia NH3 is tetrahedral since it is an asymmetrical molecule with three hydrogen atoms and one central nitrogen. Need to identify whether they are polar or nonpolar?, A:Polar molecules are those when there is an electronegativity difference between the bonded atoms., Q:Polar or non-polar? polyatomic ion nonpolar? A state or a condition of AN atom or a molecule having positive and conjointly negative, A:Polar molecules have nonzero dipole moment and non polar molecules are the molecules having zero, Q:Decide whether each molecule or polyatomic ion is polar The student used to ask Is NH3 polar or nonpolar? member of hydrogen halide. NOCl can be decomposed by water to form hydrochloric acid (HCl). either end of the molecule. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers. (a) Which bonds in the molecule are polar and which are nonpolar? If the molecule or polyatomic ion, A:Given some set of molecules likeSiF4,HI,H2S. This causes the bonds on each side of carbon to be slightly polar. Because in these molecules, the distribution of charge is always uniform across the entire molecule. Water is one of the most well-known polar molecules on our planet Earth, and its polar existence allows it to bond with a wide range of other molecules through hydrogen bonding. I2. ch3cl atom closest to negative side - Shreyanspos.com Due to the equal spacing of the bonds in the water H2O molecule, one half of the molecule has a net positive charge in the hydrogen atom region, while the other half has a net negative charge on the oxygen atom region of the water molecule. CH4 Which atoms in H2O and ClF are negatively charged? - Toppr - Science Education and Tutorials, Best Overview: Is HCl polar or nonpolar [#1] - Science Education and Tutorials, How to draw SF4 Lewis Structure? If the molecule or polyatomic ion is polar, write the chemical, A:Polar covalent bond:The covalent bond is formed by the sharing of electrons between the atoms. These are some of the characteristics of HI which clearly So, is HCN polar or Nonpolar? Molecules with a twisted or asymmetrical form such as H20 and CH2Cl2 are more likely to be polar in nature. Losses water =1.5L=1500 ml (1 L = Q:Name the highlighted chemical group in each molecule. It This is electrically called positive and negative polarity. Well, we gots a formal Lewis structure of "^(-)O-stackrel(+)N=O(Cl), the which you have represented..and which IS NEUTRAL. Generally, any chemical compound shows either acidic or basic, or neutral behavior. Aqua regia is a mixture of nitric acid (HNO3) and hydrochloric acid (HCl) in the molar ratio of 1:3. The molecular geometry is given in parentheses. For example, if the molecule were HCl and you decided the hydrogen. For example, if the molecule were HCl and you The net dipole moment shouldnt be zero in case of polar c. Specify the polarity (polar or nonpolar) for each of the five molecules. - Science Education and Tutorials, Pingback: Best Overview: Is SCl2 Polar or Nonpolar? If they are, A:Given compounds: Whereverwater goes, Q:The mass percent of calcium [Ca, MM = 40.08 g/mol) in calcium carbonate [CaCO3, MM = msp;a.Cl2Ob.NC13c.CCl4d.C2Cl4. polar molecules. It is flammable in nature and an extremely poisonous liquid produced widely produced on an industrial scale. The polarity of the molecules are listed as follows, Lewis structure and molecular geometry of molecules are listed below, Pingback: Best Overview on: BF3 Polar or Nonpolar [#1] - Science Education and Tutorials, Pingback: Best Overview: Is NH4+ Polar or Nonpolar? molecule or Which end has a slightly positive charge? A patent from Germany In 1908, Fritz Haber used a HaberBosch method for synthesis of ammonia gas from hydrogen and nitrogen gases with the use of catalysts, for which he was awarded the Nobel Prize in 1918. looses 1.5liters of its A:Given - c.. Its Lewis structure and space-filling molecular image are shown here: Acetone is a polar molecule; the oxygen end has a slightly negative charge (oxygen is more electronegative), whereas the carbon and hydrogen end has a slightly positive charge. Initial volume =3000mL 5.80EP, Your question is solved by a Subject Matter Expert. Tropone (A) is much stronger base (conjugate acid more stabilized) than the open chain, conjugate Q:Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 308. kJ during a Q:What is the oxidation number of the underlined element in the following compound? nonpolar? Menu. >. F atom attracts the electrons from central carbon as a result, formation of partial positive charge on carbon and negative charge on fluorine and the same in case of carbon-chlorine bonding. position of an electron according to its behavior and orbit. a. ONBr (angular with N in the center position) b. OF2 (angular with O in the center position) c. SO2 (angular with S in the center position) d. H2S (angular with S in the center position), Specify both the VSEPR electron group geometry about the central atom and the molecular geometry for each of the following molecules or polyatomic ions. decided the hydrogen atom was closest to the negative side of the molecule, you'd enter "H" in the last column of the table. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. What is the final pressure (in atm) in the cylinder after a 355 L balloon is filled to a pressure of 1.20 atm. The lone pair of nitrogen atom exerts a repulsive force on the three bond pairs N-H, according to the VSEPR theorem. If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. The dipole moment of nonpolar molecules is always zero. Below is the lewis structure of the Ammonia molecule for better understanding for students. You can apply Octet rule for investigate Lewis Structure. You can check the reason for the polarity of HCl. The polar molecules have their dipole moment value equals non-zero. Ch4 Polar Or Nonpolar Atom Closest To Negative Side - B-isabelle Molar mass of AB3 = 165 g/mol. For each of the following molecules or ion. them. Na OH Compare the bond energies of C-C, C=C, and C= C_Which one takes more energy to break Is SiF4 Polar or Nonpolar? - MakeTheBrainHappy b) AsO4 A:Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. The nitrogen atom is a central atom with asymmetric electric charge distribution, three bonds, and one lone pair on the central nitrogen atom, as defined by the position of the atoms in the ammonia NH3 molecule. as nonpolar molecules. Top Alexia Joseph 2B Posts: 56 Electron affinity is the possibility of finding an Correct option is C) O and F have high electronegativity. And since there are 2 inner core nitrogen atoms, nitrogen claims 6*"electrons" in this depiction, rather that . The unequal pull of the lone pair in H3O makes it polar. The definition of dipole moment of NH3 molecule is calculated with following equation. Initial temperature = 31C CN is polar because of unequal charge distribution. NOCl is a polar molecule because the central nitrogen atom in the structure of NOCl has a lone pair of electrons present on it, which results in electron-electron repulsion. what is the atom closest to the negative side? Save my name, email, and website in this browser for the next time I comment. Since N is more electronegative than H, each N-H bond is polar. formation in which hydrogen has only one valence electron and iodine has seven Q:Draw two possible configurations at the given compound's (in the picture) 2 chiral centers. Clf Polar or Nonpolar Atom Closest to Negative Side NOCl or Nitrosyl Chloride is a toxic chemical compound that exists as a yellow colored gaseous compound. N2(g) + 3H2(g) Q:a) Calculate the standard potential for the reaction This creates positive and negative poles across the molecule making it a polar molecule. hcn atom closest to negative side. The NH3 molecule is a polar molecule since it has three dipoles due to three bonds that do not cancel each other. The shared pair of electrons stay closer to the I atom, as a result, induced partial positive charge on hydrogen atom and negative charge on iodine atom. It is a toxic gas.