ABC26IN0196 · Main Group Elements

Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Elements – General · Exam: CSIR-NET 2014 · Marks: 2 · Difficulty: Easy

The correct set of pseudo halide anions is

(a)$\mathrm{CN^-, ClO_4^-, BF_4^-, PF_6^-}$

(c)$\mathrm{SCN^-, PO_4^{3-}, H_2PO_4^-, N_3^-}$

(b)$\mathrm{N_3^-, NO_3^-, HSO_4\;AsF_6^-}$

(d)$\mathrm{CN}^{-}, \mathrm{N}_{3}^{-}, \mathrm{SCN}^{-}, \mathrm{NCN}^{2-}$

Answer

Answer (as printed): D

Explanation

Pseudohalogens are polyatomic analogues of halogens whose chemistry resembles that of true halogens; common examples: $\mathrm{CN^{-}}$, $\mathrm{N_3^{-}}$, $\mathrm{SCN^{-}}$, $\mathrm{NCN^{2-}}$. These anions contain nitrogen atoms.

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