set 4 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 4 EXERCISES
The following question based on metals, non metals, minerals, ores, properties, uses topic of general science mcq
(a) Chalcopyrite
(b) Cuprite
(c) Chalcocite
(d) Malachite
The correct answers to the above question in:
Answer: (a)
Among cuprite [Cu2O], Chalcocite [Cu2 S], Chalcopyrite [CuFeS2 ] and Malachite [Cu(OH)2 CuCO3 ], only Chalcopyrite is an ore which contains both Fe and Cu.
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Read more chemistry gk Based General Science Questions and Answers
Question : 1
Aluminium metal is obtained from
a) Graphite
b) Bauxite
c) Pitch blende
d) Argentite
Answer »Answer: (b)
Question : 2
The most abundant metal in the earth’s crust is -
a) aluminium
b) iron
c) copper
d) mercury
Answer »Answer: (a)
Question : 3
Which of the following is an element which never exhibits positive oxidation state in any of its compounds?
a) Chlorine
b) Fluorine
c) Oxygen
d) Carbon
Answer »Answer: (b)
Question : 4
Which one of the following liquids is very good conductor of heat?
a) Water
b) Ether
c) Mercury
d) Benzene
Answer »Answer: (c)
Question : 5
There is no reaction when steam passes over
a) Copper
b) Carbon
c) Aluminium
d) Iron
Answer »Answer: (c)
Question : 6
Pearl is mainly constituted of
a) Calcium Sulphate
b) Calcium Carbonate
c) Calcium Oxalate
d) Calcium Oxide
Answer »Answer: (b)
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