Group D - 100 General Science Questions and Answers
Which of the following properties is not often present in organic compounds?
(A) soluble in water
(B) low melting point
(C) flammability
(D) all
Correct Answer : A
What is an alloy of copper and tin called?
(A) brass
(B) Duralumin
(C) Bronze
(D) Solder
Correct Answer : C
Gas is produced by the reaction of steam on iron?
(A) Hydrogen gas
(B) Oxygen gas
(C) ammonia gas
(D) Nitrogen gas
Correct Answer : A
Which non-metal is liquid at room temperature?
(A) mercury
(B) aluminum
(C) Bromine
(D) Copper
Correct Answer : C
If an alloy contains a metal mercury, what is it called?
(A) mercury alloy
(B) Iron Alloy
(C) Amalgam
(D) Zinc Alloy
Correct Answer : C
The alloy of lead and tin is called?
(A) Steel
(B) metalloids
(C) Gun Maton
(D) solder
Correct Answer : D
It is easy to make stone by beating metals. Which property of the metal does it indicate?
(A) hardness
(B) malleability
(C) conductivity
(D) Activity
Correct Answer : B
Which allotrope of carbon is more rigid?
(A) graphite
(B) Diamond
(C) Coal
(D) Kajal
Correct Answer : B
is silica?
(A) metalloids
(B) metal
(C) non-metals
(D) none of these
Correct Answer : A
Which compound is formed when copper is burnt in air?
(A) copper hydroxide
(B) copper hydride
(C) Copper Oxide
(D) nothing
Correct Answer : C
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