Question

$10ml$ of $20N$ $H_2{SO}_4$ were mixed with $10ml$ of $1N$ $NaOH$, the resulting solution is:

• A. Acidic
• B. Basic
• C. Neutral
• D. Amphoteric

Answer 1

The correct option is A Acidic

$10ml$ of $20N$ $H_2{SO}_4$ were mixed with $100ml$ of $1N$ $NaOH$
Equivalents of $H_2{SO}_4=\frac{20\times 10}{1000}=0.2$ equivalents
Equivalents of $NaOH=\frac{1\times 100}{1000}=0.1$ equivalents
Hence, to neutralise $0.2$ equivalents of acid $0.2$ equivalents $NaOH$ will be needed. Thus, excess of acid is left and solution is acidic.