The \( \mathrm{pH} \) value of decinormal solution of \( \mathrm{NH}_{4} \mathrm{OH} \), which i....

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The \( \mathrm{pH} \) value of decinormal solution of \( \mathrm{NH}_{4} \mathrm{OH} \),
\( \mathrm{P} \)
which is \( 20 \% \) ionised, is:
(1) 13.30
(2) 14.70
(3) 12.30
(4) 12.95


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