MCQ
If ${H^ + }$ ion concentration of a solution is increased by $10 $ times its $ pH $ will be
- AIncrease by one
- BRemains unchanged
- ✓Decrease by one
- DIncrease by $ 10$
$pH = \log \frac{1}{{[{H^ + }]}}$
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$\begin{array}{*{20}{c}}
{{H_3}COOC - CH - COOC{H_3}} \\
{|\,\,} \\
{\,\,\,\,\,\,C{H_2}OH}
\end{array}$

(Atomic numbers : $Fe=26,Co=27,Mn=25,Cr=24$)