Medium MCQ +4 / -1 PYQ · JEE Mains 2023

Choose the correct statement(s) :

A. Beryllium oxide is purely acidic in nature.

B. Beryllium carbonate is kept in the atmosphere of $\mathrm{CO_2}$.

C. Beryllium sulphate is readily soluble in water.

D. Beryllium shows anomalous behaviour.

Choose the correct answer from the options given below :

  1. A A only
  2. B B, C and D only Correct answer
  3. C A, B and C only
  4. D A and B only

Solution

<p>A. Beryllium oxide is amphoteric in nature. </p> <p> B. Beryllium carbonate is kept in the atmosphere of CO<sub>2</sub> because it is thermally less stable. </p> <p> C. Beryllium sulphate is readily soluble in water due to high degree of hydration. </p> <p> D. Beryllium shows anomalous behaviour due to small size, high ionization energy and high value of $\phi$ (polarising power).</p>

About this question

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

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