Glycerol

Ethylene glycol

Sorbitol

Methanol

Brown coloured liquid is obtained

Colourless gas evolves

White precipitate formed

Pink colored solution is obtained

Some aldehydes are converted to the respective alcohols and the salt of the respective carboxylic acid.

Alcohol is converted into aldehyde

Primary amine is converted into isocyanide

Acid is converted into amine

less steric hindrance in ketone

presence of two alkyl group on ketone decreases its electrophilicity

presence of one alkyl group on aldehyde decreases its electrophilicity

alkyl group have electron withdrawing effect.