Question

The acid having a highest $H^{+}$ ions concentration is one with-

• A. $pH=7.0$
• B. $pH=1.2$
• C. $pH=2.3$
• D. $pH=8.2$

Answer 1

The correct option is B $pH=1.2$

(a) $pH=7.0;\left[H_3{O}^{+}\right]={10}^{-7}$
(b) $pH=1.2;\left[H_3{O}^{+}\right]=6.3\times {10}^{-2}$
(c) $pH=2.3;\left[H_3{O}^{+}\right]=5.0\times {10}^{-3}$
(d) $pH=8.2;\left[H_3{O}^{+}\right]=6.3\times {10}^{-9}$
Hence solution (b) has highest $\left(H^{+}\right)$ strength.