Paper: CSIR-NET December 2011 · Subject: Inorganic Chemistry · Chapter: Chemical Bonding · Topic: Chemical Bonding – General · Marks: 2 · Difficulty: Easy
Among the following pairs, those in which both species have similar structures are:(A) $\mathrm{N_3^{-}}$, $\mathrm{XeF_2}$(B) $[\mathrm{ICl_4}]^{-}$, $[\mathrm{PtCl_4}]^{2-}$(C) $[\mathrm{ClF_2}]^{+}$, $[\mathrm{ICl_2}]^{-}$(D) $\mathrm{XeO_3}$, $\mathrm{SO_3}$
(a)(A) and (B) only
(b)(A) and (C) only
(c)(A), (B) and (C) only
(d)(B), (C) and (D) only
Answer
Answer: A ✓ checked by 4AB · confidence high
The source book printed B; on checking, A is correct — see the explanation.
Explanation
N₃⁻ and XeF₂ are both linear, and [ICl₄]⁻ and [PtCl₄]²⁻ are both square planar. ClF₂⁺ is bent while ICl₂⁻ is linear, and XeO₃ is pyramidal while SO₃ is planar. (A) and (B) only (a).