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Ionic Equilibrium question

2022 · 25 Jul · Shift 1 · Q4

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JEE Main
Chemistry
Ionic Equilibrium
2022 · 25 Jul · Shift 1 · Q4

Ionic Equilibrium question

2022 · 25 Jul · Shift 1 · Q4

JEE MainChemistryIonic EquilibriumMCQ+4 / −1

20 \mathrm{~mL}

of

0.1\, \mathrm{M} \,\mathrm{NH}_{4} \mathrm{OH}

is mixed with

40 \mathrm{~mL}

of

0.05 \mathrm{M} \mathrm{HCl}

. The

\mathrm{pH}

of the mixture is nearest to : (Given :

\mathrm{K}_{\mathrm{b}}\left(\mathrm{NH}_{4} \mathrm{OH}\right)=1 \times 10^{-5}, \log 2=0.30, \log 3=0.48, \log 5=0.69, \log 7=0.84, \log 11= 1.04)

A
3.2
B
4.2
C
5.2
D
6.2

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