Question:
Given below are two statements
Statement-I: The solubility of \(\mathrm{CaCl_2}\) and \(\mathrm{MgCl_2}\) in water is more than that of \(\mathrm{NaCl}\).
Statement-II: \(\mathrm{Ca(NO_3)_2}\) on heating gives three products.
The correct answer is
Given below are two statements
Statement-I: The solubility of \(\mathrm{CaCl_2}\) and \(\mathrm{MgCl_2}\) in water is more than that of \(\mathrm{NaCl}\).
Statement-II: \(\mathrm{Ca(NO_3)_2}\) on heating gives three products.
The correct answer is
Show Hint
On heating Group-2 metal nitrates,
\[
\boxed{
\mathrm{M(NO_3)_2
\rightarrow
MO+NO_2+O_2.}
}
\]
Thus, three products are formed.
Updated On: Jul 18, 2026
- Both statements I and II are correct
- Statement I is correct but statement II is not correct
- Statement I is not correct but statement II is correct
- Both statements I and II are not correct
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Verify Statement-I.
The chlorides of calcium and magnesium are highly soluble in water.
Their solubility is greater than that of sodium chloride.
Hence,
\[
\boxed{\text{Statement-I is correct}.}
\]
Step 2: Verify Statement-II. On heating, \[ \mathrm{2Ca(NO_3)_2 \rightarrow 2CaO+4NO_2+O_2.} \] The products formed are \[ \mathrm{CaO,\ NO_2,\ O_2}, \] which are three products. Hence, \[ \boxed{\text{Statement-II is correct}.} \]
Step 3: Write the conclusion. Both statements are correct. Hence, \[ \boxed{(A)} \] is the correct answer.
Step 2: Verify Statement-II. On heating, \[ \mathrm{2Ca(NO_3)_2 \rightarrow 2CaO+4NO_2+O_2.} \] The products formed are \[ \mathrm{CaO,\ NO_2,\ O_2}, \] which are three products. Hence, \[ \boxed{\text{Statement-II is correct}.} \]
Step 3: Write the conclusion. Both statements are correct. Hence, \[ \boxed{(A)} \] is the correct answer.
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