Question:
Identify the correct statements from the following
\[
\text{(a) } BeSO_4 \text{ is soluble in water}
\]
\[
\text{(b) } BeO \text{ is an amphoteric oxide}
\]
\[
\text{(c) } CO \text{ can be obtained by heating } CaCO_3 \text{ at } 1070-1270\,K
\]
Identify the correct statements from the following
\[ \text{(a) } BeSO_4 \text{ is soluble in water} \] \[ \text{(b) } BeO \text{ is an amphoteric oxide} \] \[ \text{(c) } CO \text{ can be obtained by heating } CaCO_3 \text{ at } 1070-1270\,K \]
\[ \text{(a) } BeSO_4 \text{ is soluble in water} \] \[ \text{(b) } BeO \text{ is an amphoteric oxide} \] \[ \text{(c) } CO \text{ can be obtained by heating } CaCO_3 \text{ at } 1070-1270\,K \]
Show Hint
Beryllium compounds often show anomalous behavior due to the small size and high polarizing power of \(Be^{2+}\). Hence, \(BeO\) is amphoteric unlike other alkaline earth metal oxides.
Updated On: Jun 22, 2026
- a, b, c
- a, b only
- a, c only
- b, c only
Show Solution
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The Correct Option is B
Solution and Explanation
Step 1: Analyze statement (a).
\[ BeSO_4 \] is soluble in water because beryllium sulfate has comparatively higher covalent character and appreciable hydration energy.
Therefore, statement (a) is correct.
Step 2: Analyze statement (b).
\[ BeO \] is amphoteric in nature.
It reacts with both acids and bases: \[ BeO+2HCl\rightarrow BeCl_2+H_2O \] and \[ BeO+2NaOH+H_2O\rightarrow Na_2[Be(OH)_4] \] Hence, statement (b) is correct.
Step 3: Analyze statement (c).
On heating, \[ CaCO_3 \] decomposes as \[ CaCO_3 \rightarrow CaO+CO_2 \] It produces \[ CO_2 \] and not \[ CO \] Therefore, statement (c) is incorrect.
Step 4: Final conclusion.
Thus, the correct statements are: \[ \boxed{\text{a, b only}} \]
\[ BeSO_4 \] is soluble in water because beryllium sulfate has comparatively higher covalent character and appreciable hydration energy.
Therefore, statement (a) is correct.
Step 2: Analyze statement (b).
\[ BeO \] is amphoteric in nature.
It reacts with both acids and bases: \[ BeO+2HCl\rightarrow BeCl_2+H_2O \] and \[ BeO+2NaOH+H_2O\rightarrow Na_2[Be(OH)_4] \] Hence, statement (b) is correct.
Step 3: Analyze statement (c).
On heating, \[ CaCO_3 \] decomposes as \[ CaCO_3 \rightarrow CaO+CO_2 \] It produces \[ CO_2 \] and not \[ CO \] Therefore, statement (c) is incorrect.
Step 4: Final conclusion.
Thus, the correct statements are: \[ \boxed{\text{a, b only}} \]
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