Amines

In the following reaction sequence

Which one of the products of the following reactions does not react with Hingberg reagent to form sulphonamide?
[Four different reduction reactions of nitriles and nitro compounds]

In gaseous triethyl amine the "-C-N-C-" bond angle is _______ degree.

Given below are two statements:
Statement I: Aniline is less basic than acetamide.
Statement II: In aniline, the lone pair of electrons on nitrogen atom is delocalised over benzene ring due to resonance and hence less available to a proton.
Choose the most appropriate option:

0.8 g of an organic compound was analysed by Kjeldahl's method for the estimation of nitrogen. If the percentage of nitrogen in the compound was found to be 42%, then __________ ml. of 1 M H₂SO₄ would have been neutralized by the ammonia evolved during the analysis.

Which one of the following compounds will liberate CO?, when treated with NaHCO?

Given below are two statements, one is labelled as Assertion (A) and other is labelled as Reason (R).
Assertion (A): Gabriel phthalimide synthesis cannot be used to prepare aromatic primary amines.
Reason (R): Aryl halides do not undergo nucleophilic substitution reaction.
In the light of the above statements, choose the correct answer from the options given below:

Consider the above reaction, the product "P" is:

An amine on reaction with benzenesulphonyl chloride produces a compound insoluble in alkaline solution. This amine can be prepared by ammonolysis of ethyl chloride. The correct structure of amine is

Which one of the following gives the most stable Diazonium salt?