set 2 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) iron
(b) aluminium
(c) copper
(d) mercury
The correct answers to the above question in:
Answer: (d)
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Read more chemistry gk Based General Science Questions and Answers
Question : 1
The form of carbon known as graphite
a) contains a higher percentage of carbon than diamond
b) is a better electrical conductor than diamond
c) is harder than diamond
d) has equal carbon-to-carbon distances in all directions
Answer »Answer: (b)
Question : 2
Which of the following statement is false?
a) Mercury is the only liquid metal.
b) Metals are good conductors of heat and electricity.
c) Gold, Silver and Zinc are most malleable metals.
d) Bromine is the only liquid non-metal.
Answer »Answer: (c)
Gold and Silver are most malleable metals whereas zinc metal is non-malleable and brittle.
Question : 3
Which one of the following materials is very hard and very ductile?
a) Tungsten
b) Cast iron
c) Carborundum
d) Nichrome
Answer »Answer: (d)
Question : 4
The main constituents of pearl are
a) Aragonite and Conchiolin
b) Ammonium Sulphate and Sodium Carbonate
c) Calcium Carbonate and Magnesium Carbonate
d) Calcium Oxide and Ammonium Chloride
Answer »Answer: (a)
Question : 5
Which allotropy of carbon is in rigid three- dimensional structure?
a) Fullerene
b) Diamond
c) Graphite
d) Carbon black
Answer »Answer: (b)
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