Top 500 Common GK Questions and Answers
What is the scientific name for common salt?
(A) sodium sulfate
(B) sodium chloride
(C) sodium bicarbonate
(D) Ammonium chloride
Correct Answer : D
In which of the following industries is mica as a raw material?
(A) Cement
(B) Glass and Pottery
(C) Iron and Steel
(D) Electrical
Correct Answer : D
The best means of extinguishing petrol fires is-
(A) Baking Powder
(B) Carbon dioxide
(C) Sand
(D) Water
Correct Answer : B
Alkaline solution is the value of Ph.
(A) Less than 7
(B) More than 7
(C) Zero
(D) 7
Correct Answer : B
Sericulture is called—
(A) Apiculture
(B) Sericulture
(C) Psiculture
(D) Horticulture
Correct Answer : B
X-rays were discovered by ________.
(A) Faraday
(B) Roington
(C) H. Devi
(D) Lavoisier
Correct Answer : B
The level of sound during normal conversation is
(A) 20 db
(B) 40 db
(C) 60 db
(D) 80 db
Correct Answer : C
The food substances which get oxidised easily can be kept for longer duration by adding
(A) oxygen and keeping them in sun for few days
(B) nitrogen and keeping them in sun for few days
(C) oxygen and keeping them in airtight containers
(D) nitrogen and keeping them in airtight containers
Correct Answer : D
The approximate percentages of oxygen, nitrogen, and carbon dioxide in pure air on the Earth's atmosphere are:
(A) 0.03%, 21% and 78% respectively
(B) 78%, 21% and 0.03% respectively
(C) 21%, 78% and 0.03% respectively
(D) 21%, 7.8% and 0.03% respectively
Correct Answer : C
Blood group was discovered by -
(A) Karl Landsteiner
(B) Pavlov
(C) Alexander Fleming
(D) William Harvey
Correct Answer : A
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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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