Q80 · CSIR-NET Chemistry, December 2019
Paper: CSIR-NET December 2019 · Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Elements – General · Marks: 2 · Difficulty: Medium
Match the items in Column I with those of Column II | Column I (species) | Column I (structure/properties) |
|---|
| (a) NaH | (i) Polymeric chain |
| (b) $\mathrm{BeH_2}$ | (ii) Interstitial hydride |
| (c) $\mathrm{HfH_{2.10}}$ | (iii) Tricapped trigonal prismatic |
| (d) $[\mathrm{TcH_9}]$ | (iv) Saline hydride |
(a)a-iv, b-ii, c-iii, d-i
(b)a-i, b-iv, c-ii, d-iii
(c)a-iv, b-i, c-ii, d-iii
(d)a-iv, b-i, c-iii, d-ii
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
NaH is a saline hydride, BeH₂ a polymeric chain, HfH₂.₁ an interstitial hydride and [TcH₉]²⁻ tricapped trigonal prismatic (c).
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