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JEE Main20231 Feb 2023Morning ShiftChemistrys Block ElementsActual

Choose the correct statement(s): A. Beryllium oxide is purely acidic in nature. B. Beryllium carbonate is kept in the atmosphere of CO 2 . C. Beryllium sulphate is readily soluble in water. D. Beryllium shows anomalous behavior. Choose the correct answer from the options given below:

Options

  1. AA, B and C only
  2. BB,C and D only
  3. CA and B only
  4. DA only

Correct answer

B. B,C and D only

Step-by-step solution

A. Beryllium oxide is amphoteric in nature. B. Beryllium carbonate is kept in the atmosphere of CO 2 because it is thermally less stable. BeCO 3   ⇌   BeO   +   CO 2 C. Beryllium sulphate is readily soluble in water due to high degree of hydration. D. Beryllium shows anomalous behaviour due to small size, high ionization energy and high value of ϕ (polarising power). So, the correct statement is B, C and D only.

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