MCQ
Night blindness is caused by deficiency of which vitamin?
- AB6
- ✓A
- CC
- DD
✓
Answer
Correct option: B.
A
b
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
Which of the following complexes formed by Cu2+ ions is most stable?
For the given cell, $\text{Mg}|\text{Mg}^{2+}||\text{Cu}^{2+}|\text{Cu}:$
→The reduction potential of hydrogen half-cell will be negative if :
The atomic number of vanadium $(V)$, chromium $(Cr)$, manganese $ (Mn)$ and iron $(Fe) $ are respectively $ 23,\, 24, \,25 $ and $ 26 $ which one of these may be expected to have the highest second ionization enthalpy
→In electrolysis of aqueous copper sulphate, the gas at anode and cathode is
The metal atom present in the complex MABXL (where $\mathrm{A}, \mathrm{B}, \mathrm{X}$ and $\mathrm{L}$ are unidentate ligands and $\mathrm{M}$ is metal) involves $\mathrm{sp}^3$ hybridization. The number of geometrical isomers exhibited by the complex is:
→Magnetic moment of diamagnetic substance in Bohr Magnetons is:
The $emf$ of the cell reaction
→$Ag|A{g^ + }\left( {0.1M} \right)||A{g^ + }\left( {1M} \right)|Ag$ at $298\, K$ is ......... $\mathrm{V}$
Product $(B)$ in this reaction is
→n-Propyl bromide on treatment with ethanolic potassium hydroxide produces: