Chemistry - Study Mode

[#1021] Polythene is polymer of
Correct Answer

(A) Ethylene

Explanation

Solution: Polythene is vinyl polymer, made from the monomer ethylene.

[#1022] Glycol is used to manufacture which of the following ?
Correct Answer

(C) Terylene

Explanation

Solution: Monoethylene glycol (MEG), also known as ethylene glycol (EG) or simply glycol, is a diol mostly used for the production of polyester fibers and polyethylene terephthalate (PET) resins. Polyethylene terephthalate is used to produce textiles, large soft-drink containers, photographic film, and overhead transparencies. It is marketed under various trademarks including DACRON, Terylene, Fortrel, and Mylar.

[#1023] Silk fibre chemically is :
Correct Answer

(C) Protein

Explanation

Solution: Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by certain insect larvae to form cocoons. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyxmori reared in captivity (sericulture). The shimmering appearance of silk is due to the triangular prism-like structure of the silk fibre, which allows silk cloth to refract incoming light at different angles, thus producing different colours.

[#1024] What is the chemical symbol of mercury?
Correct Answer

(C) Hg

Explanation

Solution: Hg is the chemical symbol of mercury.

[#1025] Which of the following is a monoatomic gas?
Correct Answer

(B) Neon

Explanation

Solution: Neon is a monoatomic gas among the following.