Aldehydes Keton...

Carboxylic acids can be prepared from alcohols, nitriles or esters.
Which statements are correct?
$$1$$. Both primary and secondary alcohols can be oxidised to carboxylic acids.
$$2$$. Carboxylic acids can be made from nitriles by hydrolysis.
$$3$$. Ethyl propanoate gives propanoic acid when reacted with hydrochloric acid.

The major product $$'Y'$$ in the following reaction is:

Nucleophilic addition reaction will be most favoured in

The formation of cyanohydrin from a ketone is an example of:

Which of the following is used as a hypnotic? 

Acetone+A $$ \rightarrow $$ oxime of acetone 
Acetone+B $$ \rightarrow $$ diacetone amine
Acetone+C $$ \rightarrow $$ mesitylene
Acetone+D $$ \rightarrow $$ isopropylidene chloride A,B,C and D are: 

 Paraldehyde is used as a:

Which has minimum reactivity towards nucleophiles?

Which of the following is not the functional isomer of monocarboxylic acid?

Unknown compound $$(A)$$ on oxidation with hot basic $$KMnO_{4}$$ gives only one compound whose structure is given in the figure.