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NEETChemistryChemical Bonding and Molecular Structure

Identify the correct statements from the following. (I) SnCl ₂ is ionic, but SnCl ₄ is covalent in nature. (II) All linear diatomic molecules have zero dipole moment. (III) Both NO and O ₂ are paramagnetic.

Options

  1. A(I) and (II) only
  2. B(I) and (III) only
  3. C(II) and (III) only
  4. D(I), (II) and (III)

Correct answer

B. (I) and (III) only

Step-by-step solution

Among the given statements only I and III are correct and II is incorrect. All linear diatomic molecules does not have zero dipole moment. e.g. HF , HCl , HBr etc. Hence, statement II is incorrect. According to Fajan's rule the central metal with more oxidation state will be considerded to be more covalent molecule than that have low oxidation state. In SnCl ₂ and SnCl ₄ the oxidation state of Sn is +2 and +4 respectively. Thus, SnCl ₄ is more covalent. Due to the presence of one unpaired electron in NO and two in

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