MCQ
Reduction of carboxylic acids gives
- AAlcohol with hydrogen in presence of palladium
- ✓Alcohol with $LiAl{H_4}$
- CAldehyde with $LiAl{H_4}$
- DAlcohol with $2HI(P)$
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$(A)$ $H _2 S _2 O _7$ $(B)$ $H _2 S _2 O _8$ $(C)$ $H _2 S _2 O _5$ $(D)$ $H _2 SO _5$
$(A)$ If $X$ is $H _2 O (l)$, deflection of the pan is upwards.
$(B)$ If $X$ is $K _4\left[ Fe ( CN )_6\right](s)$, deflection of the pan is upwards.
$(C)$ If $X$ is $O _2(g)$, deflection of the pan is downwards.
$(D)$ If $X$ is $C _6 H _6(l)$, deflection of the pan is downwards.
