General Science Questions and Answers

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Q31
Soda water contains
  • A carbonic acid
  • B sulphuric acid
  • C carbon dioxide
  • D nitrous acid
Answer: Option C
Q32
The most important ore of aluminium is
  • A galena
  • B calamine
  • C calcite
  • D bauxite
Answer: Option D
Q33
 Most soluble in water is
  • A camphor
  • B sulphur
  • C common salt
  • D sugar
Answer: Option D
Q34
Which of the following was to be discovered first in the chromospheres of the sun?
  • A Krypton
  • B Xenon
  • C Helium
  • D Neon
Answer: Option D
Q35
Which of the following is in liquid form at room temperature?
  • A Lithium
  • B Sodium
  • C Francium
  • D Cerium
Answer: Option C
Q36
Sodium metal is kept under
  • A petrol
  • B alcohol
  • C water
  • D kerosene
Answer: Option D
Q37
Which of the following are the ingredients of gun metal?
  • A Iron, Zinc, Titanium
  • B Iron, tin
  • C Iron, Brass, Tin
  • D Copper, Tin
Answer: Option D
Q38
From which mineral is radium obtained?
  • A Rutile
  • B Haematite
  • C Limestone
  • D Pitchblende
Answer: Option D
Q39
From which mineral is radium obtained?
  • A Rutile
  • B Haematite
  • C Limestone
  • D Pitchblende
Answer: Option D
Q40
Actinides are the elements with atomic numbers from
  • A 97 to 104
  • B 101 to 115
  • C 89 to 103
  • D 36 from 43
Answer: Option C

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