\( \mathrm{H}^{+} \)ion concentration of water does not change by adding : (a) \( \mathrm{CH}_{3...

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\( \mathrm{H}^{+} \)ion concentration of water does not change by adding :
(a) \( \mathrm{CH}_{3} \mathrm{COONa} \)
(b) \( \mathrm{NaNO}_{3} \)
(c) \( \mathrm{NaCN} \)
(d) \( \mathrm{Na}_{2} \mathrm{CO}_{3} \)
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