AIIMS 2017 Chemistry Molecular Geometry Assertion Reason Question
Among the following, the true statements are:
I. and do not exist
II. is present in .
III. electrons travel with speed of light.
IV. and has same shape.
V. has bent shape.
I, III
I, II, V
I, III, V
I, II, IV
Correct Answer
Detailed Explanation
Option D is correct because statements (I), (II), and (V) are accurate. Statement (I) is true as PH₅ and BiCl₅ do not exist due to the inert pair effect, where the s-electrons of heavier p-block elements are less available for bonding. Statement (II) is incorrect because SO₂ primarily exhibits pπ-pπ bonding rather than pπ-dπ bonding, which is not a significant feature in its bonding. Statement (V) is correct; I₃⁺ has a bent shape due to the presence of lone pairs on the central atom. The other statements (III and IV) contain inaccuracies regarding electron behavior and molecular geometry, respectively.
Found an issue with this question?