ABC26IN0696 · Main Group Elements

Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Elements – General · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Medium

Arrange $\mathrm{BF}_{3}, \mathrm{BCl}_{3}$ and $\mathrm{BBr}_{3}$ in the increasing order of Lewis acidity and justify. 2(a) Write the steps involved in the production of pure elemental silicon from silica.

(b)Both the products A and B in the following reactions, contain boron and nitrogen. Identify A and B

\[ 3\mathrm{NH}_{4}\mathrm{Cl}+3\mathrm{BCl}_{3} \xrightarrow[\text{heat}]{\mathrm{C}_{6}\mathrm{H}_{5}\mathrm{Cl}} \mathrm{A} \xrightarrow[\text{THF}]{\mathrm{LiAlH}_{4}} \mathrm{B} \]

Answer

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Explanation

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