Question

The plastic household crockery is prepared by using
(a) melamine and tetrafluoroethane
(b) malonic acid and hexamethyleneamine
(c) melamine and vinyl acetate
(d) melamine and formaldehyde

Answer 1

c)is used for preparing an plastic household crockery

Answer 2

Answer:

Melamine and formaldehyde is used to prepare plastic household crockery.

Explanation

Melamine reacts with Formaldehyde to form cross linked resins similar to phenolics. Melamine has six amine hydrogen. Melamine offers superior resistance to heat, weather, and moisture.  

Melamine and formaldehyde copolymerise to give melamine formaldehyde polymer. This polymer is quite hard. It is used in making plastic crockery. It is also used to make cups, plates, etc..