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Top 50 General Science GK Questions

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General Science Questions and Answers


Q.41 Which of the following was to be discovered first in the chromospheres of the sun?

(A) Krypton

(B) Xenon

(C) Neon

(D) Helium

Ans .   D

Q.42 Which of the following is in liquid form at room temperature?

(A) Lithium

(B) Sodium

(C) Francium

(D) Cerium

Ans .   C

Q.43 Sodium metal is kept under

(A) petrol

(B) alcohol

(C) water

(D) kerosene

Ans .   D

Q.44 Which of the following are the ingredients gunmetal?

(A) Iron, Zinc, Titanium

(B) Iron, tin

(C) Iron, Brass, Tin

(D) Copper, Tin

Ans .   D

Q.45 From which mineral is radium obtained?

(A) Rutile

(B) Haematite

(C) Limestone

(D) Pitchblende

Ans .   D

Q.46 Potassium nitrate is used in

(A) medicine

(B) fertilizer

(C) salt

(D) glass

Ans .   B

Q.47 Permanent hardness of water may be removed by the addition of

(A) sodium carbonate

(B) alum

(C) potassium permanganate

(D) lime

Ans .   A

Q.48 Soda water contains

(A) carbonic acid

(B) sulphuric acid

(C) carbon dioxide

(D) nitrous acid

Ans .   C

Q.49 The most important ore of aluminum is

(A) galena

(B) calamine

(C) calcite

(D) bauxite

Ans .   D

Q.50 Most soluble in water is

(A) camphor

(B) sulfur

(C) common salt

(D) sugar

Ans .   D

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