Question

$2$ g of metal carbonate is neutralised completely by $100$ mL of $0.1N$ $HCl$. The equivalent mass of metal carbonate is :

• A. $50$
• B. $100$
• C. $150$
• D. $200$

Answer 1

The correct option is D $200$

At neutralisation point, both have the same number of equivalents.

So,

Meq. of metal carbonate $=$ Meq. of $HCl$

$\frac{2}{E}\times 1000=100\times 0.1$

$E=\frac{2\times 1000}{100\times 0.1}=200$