Natural Science Quiz Questions and Answers for Competitive Exams

General Science Questions: 2020

9. Which polymer is used to manufacture electric switches, computer disks etc.?
(A) Bakelite

(B) Polythene

(C) Nylon

(D) Teri cot

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10. With which polymer, the cabinets of radio and TV made of?
(A) Polystyrene

(B) Polythene

(C) Nylon

(D) Teri cot

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11. Which chemical is used to make rain coats?
(A) Poly Vinyl Chloride(PVC)

(B) Polythene

(C) Nylon

(D) Teri cot

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12. Which type of plastics can be recycled?
(A) Thermoplastics

(B) Polythene (PE)

(C) Polyvinyl Chloride (PVC)

(D) Polyprophylene (PP)

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13. What is the name given to plastics that cannot be recycled?
(A) Thermosetting plastics

(B) Polythene (PE)

(C) Polyvinyl Chloride (PVC)

(D) Polyprophylene (PP)

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14. Which element is a liquid at ordinary temperature?
(A) Mercury

(B) Iron

(C) copper

(D) Tustin

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15. What is the chemical name of baking soda?
(A) Sodium bicarbonate

(B) Sodium Hydroxide

(C) Calcium carbonate

(D) Sulphur Soda

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16. What is sodium carbonate commonly known as?
(A) Washing soda or soda ash

(B) Bathing Soap

(C) Washing Soap

(D) Surf

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