Q40 · CSIR-NET Chemistry, December 2018

Paper: CSIR-NET December 2018 · Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Elements – General · Marks: 2 · Difficulty: Easy

The reaction of decaborane $\mathrm{B}_{10} \mathrm{H}_{14}$, with acetylene in the presence of $\mathrm{Et}_{2} \mathrm{S}$ gives
(a)$\mathrm{C}_{2} \mathrm{B}_{10} \mathrm{H}_{12}$
(b)$\mathrm{C}_{2} \mathrm{B}_{8} \mathrm{H}_{10}$
(c)$\mathrm{C}_{2} \mathrm{B}_{10} \mathrm{H}_{14}$
(d)$\mathrm{C}_{2} \mathrm{B}_{9} \mathrm{H}_{11}$
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
B₁₀H₁₄ + C₂H₂ (Et₂S) → C₂B₁₀H₁₂ (a).

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