GK Questions on Metal and Alloys for Competitive Exams
Chemistry GK Questions
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Q.21 Which substance is obtained by the hydrolysis of oil?
A. ethanol
B. glycol
C. acetic acid
D. glycerol
Ans . D
Q.22 Washing soda is
A. sodium sulphite
B. sodium bicarbonate
C. sodiun carbonate
D. sodium biosulphite
Ans . C
Q.23 Air contains maximum amount of
A. oxygen
B. nitrogen
C. hydrogen
D. carbon dioxide
Ans . B
Q.24 Human bone does not contain
A. calcium
B. carbon
C. oxygen
D. phosphorous
Ans . C
Q.25 Homo nuclear molecules contain
A. polar bond
B. covalent bond
C. ionic bond
D. coordinate bond
Ans . B
Q.26 Which one of the following metals is the best conductor of electricity?
(A) iron
(B) copper
(C) silver
(D) aluminium
Ans . C
Q.27 Which of the following is the lightest metal?
(A) mercury
(B) copper
(C) aluminium
(D) lithium
Ans . D
Q.28 Which two metals combine to form Bell metal?
(A) nickel and copper
(B) zinc and copper
(C) tin and copper
(D) brass and nickel
Ans . C
Q.29 Which of the following metals is known to pollute the air of big cities with a large number of vehicles?
(A) Lead
(B) Mercury
(C) Iron
(D) Copper
Ans . A
Q.30 Which of the following metals is used in making the filament of an electric bulb?
(A) platinum
(B) tungsten
(C) carbon
(D) chromium
Ans . B
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