Question

Solution	$pH$
I) ${10}^{-1}MHCl$	A) 0.6990
II) ${10}^{-1}M{H}_{2}S{O}_4$	B) Between 1 and 2
III) ${10}^{-1}MC{H}_{3}COOH$	C) Between 6 and 7
IV) ${10}^{-8}MHCl$	D) 1

The correct match is

• A. $A-III;B-II;C-I;D-IV$
• B. $A-II;B-III;C-IV;D-I$
• C. $A-IV;B-I;C-III;D-II$
• D. $A-I;B-IV;C-II;D-III$

Answer 1

The correct option is B $A-II;B-III;C-IV;D-I$

The $pH$ of $0.1MHCl$ is 1
The $pH$ of $0.1M{H}_{2}S{O}_4=-2\log \left[0.1\right]=0.69$
The $pH$ of $0.1MC{H}_{3}COOH$ is greater than 1 as acetic acid is a weak acid
The $pH$ of ${10}^{-8}MHCl$ is between $6$ & $7$ as we have to consider the $[H+]$ ion concentration from water as the acid is too dilute