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:
To solve this question, we need to evaluate the provided statements about beryllium compounds and pick the correct ones.
Statement A: Beryllium oxide is purely acidic in nature
Beryllium oxide (BeO) is amphoteric in nature. This means it can act as both an acid and a base. It reacts with acids to form beryllium salt and with bases to form complex anions.
Therefore, this statement is incorrect.
Statement B: Beryllium carbonate is kept in the atmosphere of CO_2
Beryllium carbonate (BeCO_3) is unstable in air and decomposes to form beryllium oxide, carbon dioxide, and water.
To stabilize it, it is usually kept in a CO_2 atmosphere. This prevents the loss of CO_2 from it, thereby making the statement correct.
Statement C: Beryllium sulphate is readily soluble in water
Beryllium sulphate (BeSO_4) is indeed soluble in water. It is one of the few beryllium salts that dissolve well in water.
Hence, this statement is correct.
Statement D: Beryllium shows anomalous behavior
Beryllium is known to show anomalous behavior compared to other group 2 elements (alkaline earth metals) due to its small size and high ionization energy.
This behavior is akin to the diagonal relationship it shares with aluminum.
Therefore, this statement is correct.
In conclusion, the true statements are B, C, and D. Therefore, the correct answer is B, C and D only.
