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) 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.
The correct answers to the above question in:
Answer: (c)
Gold and Silver are most malleable metals whereas zinc metal is non-malleable and brittle.
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Read more chemistry gk Based General Science Questions and Answers
Question : 1
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 : 2
A glass of water does not turn into ice as it reaches 0 °C. It is because
a) a certain amount of heat must be supplied to the glass of water so as to solidify
b) a certain amount of heat must be taken out from the glass of water so as to solidify
c) water does not solidify at 0°C
d) water solidifies at 0 K only
Answer »Answer: (b)
Question : 3
Which of the following materials has the highest electrical conductivity?
a) Silver
b) Graphite
c) Diamond
d) Wood
Answer »Answer: (a)
Question : 4
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 : 5
One of the constituents of amalgam is
a) iron
b) aluminium
c) copper
d) mercury
Answer »Answer: (d)
Question : 6
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)
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