MCQ
Among the following vitamins the one whose deficiency causes rickets (bone deficiency) is
- AVitamin $A$
- BVitamin $B$
- ✓Vitamin $D$
- DVitamin $C$
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| List $I$ Name of reaction | List $II$ Reagent used |
| $A$ Hell-Volhard-Zelinsky reaction | $I$ $NaOH + I _2$ |
| $B$ Iodoform reaction | $II$ (i) $CrO _2 Cl _2, CS _2$ (ii)$H _2 O$ |
| $C$ Etard reaction | $III$ (i) $Br _2 /$ red phosphorus (ii) $H _2 O$ |
| $D$ Gatterman-Koch reaction | $IV$ $CO , HCl$, anhyd.$AlCl_3$ |
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