MCQ
The $pH$ of solution having $[O{H^ - }] = {10^{ - 7}}$ is
- ✓$7$
- B$14$
- C$0$
- D$ - 7$
$\because \,[O{H^ - }] = {10^{ - 7}}$
$pOH = 7$
$\therefore \,pH = 14 - 7 = 7$.
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$A$. $\mathrm{Be} \rightarrow \mathrm{Be}^{-}$
$B$. $\mathrm{N} \rightarrow \mathrm{N}^{-}$
$C$. $\mathrm{O} \rightarrow \mathrm{O}^{2-}$
$D$. $\mathrm{Na} \rightarrow \mathrm{Na}^{-}$
$E$. $\mathrm{Al} \rightarrow \mathrm{Al}^{-}$
Choose the most appropriate answer from the options given below :

