The pH of a solution obtained by mixing 5 mL of 0.1 M NH₄OH solution with 250 mL of 0.1 M NH₄Cl solution is _ _ _ ×10⁻². (Nearest integer) Given: pK b (NH₄OH)=4.74, log 2=0.30, log 3=0.48, log 5=0.70

Equilibrium: JEE Main 2026 Chemistry question

JEE Main 2026 · 4 Apr, Morning shift · Q74

JEE Main 20264 Apr, Morning shiftChemistryMediumEquilibrium123× since 2002

The pH of a solution obtained by mixing 5 mL of 0.1 M

\mathrm{NH_4OH}

solution with 250 mL of 0.1 M

\mathrm{NH_4Cl}

solution is ______

\times10^{-2}

. (Nearest integer) Given:

\mathrm{p}K_b(\mathrm{NH_4OH})=4.74

\log2=0.30

\log3=0.48

\log5=0.70

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2026 Equilibrium Question with Solution (4 Apr Morning shift, Q74) | JEE Arc