PG TRB Chemistry Model Question Paper with Answer - 4

Question: 16

The gas which emits from rice field is

(A) Ethane

(B) Methane

(C) Nitrogen

(D) All of the above

Ans: B

Methane

Question: 17

Which has maximum calorific value?

(A) Fat

(B) Carbohydrate

(C) Amino acid

(D) Protein

Ans: A

Fat

Question: 18

Which of the following is used in endoscopes?

(A) Glass wool

(B) Safety glass

(C) Flint glass

(D) Optical fibre

Ans: D

Optical fibre

Question: 19

Which one is not metal?

(A) Sulphur

(B) Sugar

(C) Nitrogen

(D) All of these

Ans: D

All of these

Question: 20

Which of the following is used to heat the fire clay pots in the manufacture of glass?

(A) LP gas

(B) Water gas

(C) Coal gas

(D) Producer gas

Ans: D

Producer gas

Related Questions