Question

A saturated \(CaCO_3 \)stock solution is existing at 25°C. In one experiment (i) 25 g \(Na_2CO_3 \)is added to the stock solution. In another experiment (ii) 25 g \(Na_2SO_4\) is added to the stock solution. Select the correct statement from the following.

• A. Addition of (i) increases the concentration of \( Ca^{2+}\) and addition of (ii) decreases the concentration of \(Ca^{2+}\)
• B. Addition of (i) decreases the concentration of \(Ca^{2+}\) and addition of (ii) increases the concentration of \(Ca^{2+}\)
• C. Addition of (i) and (ii) increase the concentration of \(Ca^{2+}\)
• D. Addition of (i) and (ii) decrease the concentration of \(Ca^{2+}\)

Answer 1

The Correct Option is B

The correct answer is (B) :

Addition of (i) decreases the concentration of \(Ca^{2+}\) and addition of (ii) increases the concentration of \(Ca^{2+}\)