Dear friends, In this article I am going to write a number of MCQ of general science. These questions will be very beneficial for you in your competitive examination like all State PCS ( UPPCS, BPSC, JPSC, UKPCS, RPSC, MPPSC etc.), SSC, SSC CGL, IBPS, UPSSSC VDO etc.


  1. The heavenly body nearest to earth is the –
  1. Moon
  2. Saturn
  3. Jupiter
  4. Mars


Ans- Moon


  1. Athlete’s foot is a dangerous disease caused by –
  1. Vitamin deficiency
  2. Virus
  3. Fungus
  4. Protozoa

Ans- Fungus


  1. Which of the following is poorest heat insulator-
  1. Rock
  2. Aluminium
  3. Glass
  4. Air


Ans- Aluminium


  1.  How does the soda water go up in the straw-
  1. The air is sucked out and the atmospheric pressure pushes in the liquid.
  2. CO2  in soda water pushes in the liquid
  3. By pushing cork of bottle
  4. By sucking soda water sucked inside.


Ans- the air is sucked out and the atmospheric pressure pushes in the liquid.


  1.  Brass gets discoloured in air because of the presence of the following gases in the air-
  1. Carbon monoxide
  2. Carbon-dioxide
  3. Hydrogen sulphide
  4. Hydrogen


Ans- Hydrogen sulphide


  1.  Which material is used in pencil?
  1. Graphite
  2. Carbon
  3. Charcoal
  4. Silicon


Ans- Graphite


  1.  The hardest substance available on the earth is-
  1. Uranium
  2. Thorium
  3. Diamond
  4. Platinum


Ans- Diamond


  1.  Which of the following is used as a lubricant –
  1. Silver
  2. Graphite
  3. Iron oxide
  4. Helium


Ans – Graphite


  1.  Galvanised iron have a coating of ?
  1. Lithium
  2. Chromium
  3. Tin
  4. Zinc


Ans – Zinc


  1.  Which substance is added to remove permanent hardness of water?
  1. Chlorine
  2. Sodium carbonate
  3. Potassium permanganate
  4. Lime

Ans – Sodium carbonate


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  1. What is most important ore of Aluminium ?
  1. Bauxite
  2. Galena
  3. Pitch blend
  4. Calamine


Ans – Bauxite


  1.  Which is the most soluble in water?
  1. Lime
  2. Calcium carbonate
  3. Common salt
  4. Sugar


Ans – Sugar


  1. Why does Potassium Permanganate used for purifying the water?
  1. It is an oxidising agent.
  2. It is sterilising agent.
  3. It dissolves the impurities the impurity of water.
  4. It is a reducing agent.


Ans – It is an oxidising agent.


  1.  Which element is responsible to produce green flame in fireworks?
  1. Potassium
  2. Mercury
  3. Barium
  4. Beryllium


Ans – Barium.


  1.  Production of chlorofluorocarbons gas which is proposed to be banned in india, is used in which of the domestic products?
  1. Cooking gas
  2. Refrigerator
  3. Liquified petroleum gas
  4. Television


Ans – Refrigerator


Many questions of general science are asked in different competitive exams.


You can also read articles on UPPSC and UPSSSC – energy resources [ Thermal Power and Hydro Power Projects ] which I have  published.


Visit UPSSSCPORTAL.COM daily because I write here for your exams. And my name is Rohit Nandan Singh. I am author of this website.


If you have any doubts or queries you can ask in comment box. All the best for your exams.


Next part of Most Expected General Science MCQ 




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