For the following questions answer them individually
Which one of the following species responds to an external magnetic field?

The given reaction can occur in the presence of:
(a) Bromine water
(b) $$Br_{2}$$ in $$CS_{2}$$, 273 K
(c) $$Br_{2} / FeBr_{3}$$
(d) $$Br_{2}$$ in $$CHCl_{3}$$, 273 K
Choose the correct answer from the options given below:

Given below are two statements, one is labelled as Assertion (A) and other is labelled as Reason (R).
Assertion (R) : Gabriel phthalimide synthesis cannot be used to prepare aromatic primary amines.
Reason : Aryl halides do not undergo nucleophilic substitution reaction.
In the light of the above statements, choose the correct answer from the options given below:
Which one of the products of the following reactions does not react with Hinsberg reagent to form sulphonamide?
Which one of the following compounds will liberate CO$$_2$$, when treated with NaHCO$$_3$$?
is a repeating unit for:
Sodium stearate CH$$_3$$CH$$_{2_{16}}$$COO$$^-$$Na$$^+$$ is an anionic surfactant which forms micelles in oil. Choose the correct statement for it from the following:
The water soluble protein is: