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  • If H+ ion concentration of a solution is increased by 10 times, its pH will?Option: 1 Decreases by 1<div class='qna-opt

If H+ ion concentration of a solution is increased by 10 times, its pH will?

Option: 1

Decreases by 1


Option: 2

Increase by 1


Option: 3

Increase by 10


Option: 4

Remains unchanged


Answers (1)

best_answer

\begin{array}{l}{\text {Let the initial concentration of} \, \mathrm{H}^{+}=10^{-1} \mathrm{M}} \\ {\mathrm{pH}_{1}=1} \\ {\text {The new concentration of } \mathrm{H}^{+} \text { , is } 10 \text { times the initial }} \\ {\text {concentration of } \mathrm{H}^{+}=10 \times 10^{-1} \mathrm{M}=10^{\circ}=1} \\ {\mathrm{pH}_{2}=-\log (1)=0} \\ {\text {The change in } \mathrm{pH}=\mathrm{pH}_{1}-\mathrm{pH}_{2}=1-0=1} \\ {\text {Change in } \mathrm{pH} \text { is one and it decreases from } 1 \text { to zero. }}\end{array}

Therefore, option(1) is correct.

Posted by

seema garhwal

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