Selective Chemistry GK Questions for Competitive Exam
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
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
Which metal can be cut with a knife among sodium, lithium, calcium and nickel?
(A) Sodium
(B) Lithium
(C) calcium
(D) all
Correct Answer : A
Explanation :
Alkali metals (lithium, sodium, potassium) are so soft that they can be cut with a knife. The freshly cut surface is a shiny, silver colour, but this tarnishes quickly to a dull grey as the metal reacts with oxygen and water in the air.
Silver and copper heat?
(A) are the best drivers
(B) are less conductors
(C) are dielectrics
(D) is the best conductor
Correct Answer : A
Which of the following metals are kept immersed in kerosene?
(A) Sodium
(B) Magnesium
(C) Zinc
(D) all
Correct Answer : A
Which of the following metals is available in wire form?
(A) Calcium
(B) Magnesium
(C) Copper
(D) Lead
Correct Answer : C
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Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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