Top 50 General Science GK Questions
Basic Science Questions for Competitive Exam
Q.51 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[/correctAnswer
Q.52 Which of the following is in liquid form at room temperature?
(A) Lithium
(B) Sodium
(C) Francium
(D) Cerium
Ans . C
Q.53 Sodium metal is kept under
(A) petrol
(B) alcohol
(C) water
(D) kerosene
Ans . D[/correctAnswer
Q.54 Which of the following are the ingredients of gunmetal?
(A) Iron, Zinc, Titanium
(B) Iron, tin
(C) Iron, Brass, Tin
(D) Copper, Tin
Ans . D
Q.55 From which mineral is radium obtained?
(A) Rutile
(B) Haematite
(C) Limestone
(D) Pitchblende
Ans . D
Q.56 Potassium nitrate is used in
(A) medicine
(B) fertilizer
(C) salt
(D) glass
Ans . B
Q.57 Permanent hardness of water may be removed by the addition of
(A) sodium carbonate
(B) alum
(C) potassium permanganate
(D) lime
Ans . A
Q.58 Soda water contains
(A) carbonic acid
(B) sulphuric acid
(C) carbon dioxide
(D) nitrous acid
Ans . C
Q.59 The most important ore of aluminum is
(A) galena
(B) calamine
(C) calcite
(D) bauxite
Ans . D
Q.60 Most soluble in water is
(A) camphor
(B) sulphur
(C) common salt
(D) sugar
Ans . D
Showing page 16 of 20
enhttps://www.examsbook.com/top-50-general-science-gk-questions/162016top-50-general-science-gk-questionsAbout author
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/.
Read more articles