MCQ
The hydrogen ion concentration of $0.001 $ $M\,\,NaOH$ solution is
- A$1 \times {10^{ - 2}}\,mole/litre$
- ✓$1 \times {10^{ - 11}}\,mole/litre$
- C$1 \times {10^{ - 14}}\,mole/litre$
- D$1 \times {10^{ - 12}}\,mole/litre$
$pH + pOH = 14;\,\,pH = 14 - 3$
$pH = 11$; $[{H^ + }] = {10^{ - 11}}$ $mole-litre$$^{-1}$
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(Mass of proton $= 1.67 \times 10^{-27}\, kg$ and $h = 6.63 \times 10^{-34}\, Js$)
$\mathrm{PF}_5, \mathrm{BrF}_5, \mathrm{PCl}_5,\left[\mathrm{PtCl}_4\right]^{2-}, \mathrm{BF}_3, \mathrm{Fe}(\mathrm{CO})_5$