Previous 10 Years Question Papers with Answers for TRB Chemistry - 4
Question: 16
In which type of coal percentage of carbon is the highest?
(A) Anthracite
(B) Lignite
(C) Bituminous
(D) Peat
Ans: A
Anthracite
Question: 17
Melting point of graphite is
(A) 1500°C
(B) 2400°C
(C) 2600°C
(D) 3700°C
Ans: D
3700°C
Question: 18
The metal in the liquid state is
(A) Tin
(B) Gold
(C) Silver
(D) Mercury
Ans: D
Mercury
Question: 19
Which of the following is not a metallic mineral?
(A) Haematite
(B) Limonite
(C) Gypsum
(D) Bauxite
Ans: B
Limonite
Question: 20
Which of the following is a weak acid?
(A) HCL
(B) HNO3
(C) CH3COOH
(D) H2SO4
Ans: C
CH3COOH
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