MCQ
The $pH$ of a ${10^{ - 10}}\,M\,NaOH$ solution is nearest to
- A$10$
- ✓$7$
- C$4$
- D$ - 10$
✓
Answer
Correct option: B.
$7$
(b)$NaOH$ is a base, so that its $pH > 7$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Identify which of the structures below are meso structures ?
Which of the following compound does not show the amphoteric behaviour
Which of the following ion is most stable?
Relationship between above pair $(A)$ and $(B)$ is
→The largest number of molecules is in
Which has maximum dipole moment and can show optical isomerism
$3{d^{10}}4{s^0}$ electronic configuration exhibits
→' $A$ ' in the given reaction is
→A chemist has $4$ samples of artificial sweetner $A$. $\mathrm{B}, \mathrm{C}$ and $\mathrm{D}$. To identify these samples, he performed certain experiments and noted the following observations :
→$(i)$ $A$ and $D$ both form blue-violet colour with ninhydrin.
$(ii)$ Lassaigne extract of $\mathrm{C}$ give positive $\mathrm{AgNO}_{3}$ test and negative $\mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{3}$ test.
$(iii)$ Lassaigne extract of $\mathrm{B}$ and D gives positive sodium nitroprusside test
Based on these observations which option is correct ?
For vaporization of water at $1$ atmospheric pressure, the values of $\Delta H$ and $\Delta S$ are $40.63 \,kJ\, mol^{-1}$ and $108.8\, J \,K^{-1}\, mol^{-1},$ respectively. The temperature when Gibb's energy change $(\Delta G)$ for this transformation will be zero, is ............ $\mathrm{K}$
→