Aldehydes Keton...

Which of the following compounds does not have a carboxyl group?

The oxidation products of 1-nitronaphthalene and $$\alpha$$-naphthylamine respectively are :

$$X$$ is:

What is the compound $$A$$?

Toluene$$\xrightarrow[]{KMnO_{4}/KOH/H_{3}O^{\bigoplus }}$$ A. 

In the manufacture of acetic acid from aerial oxidation of acetaldehyde, the catalyst used is :

$$CH_{3}CH_{2}CH_{2}CHO\overset{x}{\rightarrow}CH_{3}CH_{2}CH_{2}COOH$$
In the above reaction X is an oxidising agent and X is__________.

On vigorous oxidation by permanganate solution $$(CH_{3})_{2}C=CH-CH_{2}CHO$$ gives :

Assertion (A) : $$CH_{3}CN$$ on hydrolysis gives Acetic Acid
Reason (R) : Cyanides on hydrolysis liberates $$NH_{3}$$ gas