Medium MCQ +4 / -1 PYQ · JEE Mains 2022

Reaction of $\mathrm{BeCl}_{2}$ with $\mathrm{LiAlH}_{4}$ gives :

(A) $\mathrm{AlCl}_{3}$

(B) $\mathrm{BeH}_{2}$

(C) $\mathrm{LiH}$

(D) $\mathrm{LiCl}$

(E) $\mathrm{BeAlH}_{4}$

Choose the correct answer from options given below :

  1. A (A), (D) and (E)
  2. B (A), (B) and (D) Correct answer
  3. C (D) and (E)
  4. D (B), (C) and (D)

Solution

$$2 \mathrm{BeCl}_{2}+\mathrm{LiAlH}_{4} \rightarrow 2 \mathrm{BeH}_{2}+\mathrm{LiCl}+\mathrm{AlCl}_{3}$$

About this question

Subject: Chemistry · Chapter: s-Block Elements · Topic: Alkali Metals

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