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
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