Easy Science GK Questions and Answers
The marshy gas which is produced on decomposition of organic matter and is mostly found in coal mines, is the name of that gas?
(A) ethane
(B) Methane
(C) carbon dioxide
(D) carbon monoxide
Correct Answer : B
Which of the following is essentially produced in the fermentation process?
(A) ethyl alcohol
(B) Methyl alcohol
(C) acetic acid
(D) yeast
Correct Answer : A
Why is sodium stored in kerosene?
(A) To maintain in its original form
(B) It gets oxidised in air
(C) evaporation starts in the air
(D) it starts burning in air
Correct Answer : B
What is the smallest unit of a chemical compound?
(A) Atomic
(B) electron
(C) Proton
(D) Molecules
Correct Answer : D
Iron pipes, from which water is supplied, are coated with zinc (Zn) to prevent rusting. This layering process is called?
(A) Annealing
(B) Vulcanization
(C) Yashad coating
(D) none of these
Correct Answer : C
Solute can be separated from solution?
(A) filtration
(B) evaporation
(C) Decantation
(D) sedimentation
Correct Answer : B