JEE Main 2022 — Chemistry Physical Chemistry

2022mcqmedium

$200\mathrm{mL}$ of $0.01\mathrm{MHCl}$ is mixed with $400\mathrm{mL}$ of $0.01{\mathrm{MH}}_{2}{\mathrm{SO}}_{4}$ . The $\mathrm{pH}$ of the mixture is

Official previous-year question

Held on 29 Jul 2022 · Verified 6 Jul 2026.

Options

A
$1.14$
B
$1.78$
C
$2.34$
D
$3.02$

Did you get this right?

Solution

pH of a mixture of $\mathrm{HCl}+{H}_{2}{\mathrm{SO}}_{4}$ has to calculated

The number of equivalents of HCl is equal to $0.02\mathrm{equivalents}$

The number of equivalents of ${H}_{2}{\mathrm{SO}}_{4}$ given is equal to $0.008$ equivalents

Hydrogen ion concentration of the resultant mixture is equal to $[{H}^{+}]=\frac{(0.01\times 200)+(0.01\times 2\times 400)}{600}$

$=\frac{2+8}{600}=\frac{10}{600}=\frac{1}{60}$

$\mathrm{pH}=-\mathrm{log}[\frac{1}{60}]$

$=1.78$

Your note

JEE Main Physical Chemistry in other years

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JEE Main 2022 — Chemistry Physical Chemistry

2022mcqmedium

$200\mathrm{mL}$ of $0.01\mathrm{MHCl}$ is mixed with $400\mathrm{mL}$ of $0.01{\mathrm{MH}}_{2}{\mathrm{SO}}_{4}$ . The $\mathrm{pH}$ of the mixture is

Official previous-year question

Held on 29 Jul 2022 · Verified 6 Jul 2026.

Options

A
$1.14$
B
$1.78$
C
$2.34$
D
$3.02$

Did you get this right?

Solution

pH of a mixture of $\mathrm{HCl}+{H}_{2}{\mathrm{SO}}_{4}$ has to calculated

The number of equivalents of HCl is equal to $0.02\mathrm{equivalents}$

The number of equivalents of ${H}_{2}{\mathrm{SO}}_{4}$ given is equal to $0.008$ equivalents

Hydrogen ion concentration of the resultant mixture is equal to $[{H}^{+}]=\frac{(0.01\times 200)+(0.01\times 2\times 400)}{600}$

$=\frac{2+8}{600}=\frac{10}{600}=\frac{1}{60}$

$\mathrm{pH}=-\mathrm{log}[\frac{1}{60}]$

$=1.78$

Your note

JEE Main Physical Chemistry in other years

Keep practicing Physical Chemistry

Work through every JEE Main Physical Chemistry PYQ, year by year.

Browse all Chemistry topics

JEE Main 2022 — Chemistry Physical Chemistry

Options

Did you get this right?

Solution

Your note

JEE Main Physical Chemistry in other years

More JEE Main Physical Chemistry questions

Other Chemistry topics for JEE Main

Organic Chemistry

Inorganic Chemistry

Keep practicing Physical Chemistry

JEE Main 2022 — Chemistry Physical Chemistry

Options

Did you get this right?

Solution

Your note

JEE Main Physical Chemistry in other years

More JEE Main Physical Chemistry questions

Other Chemistry topics for JEE Main

Organic Chemistry

Inorganic Chemistry

Keep practicing Physical Chemistry