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QUIZ

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Test your Grey matter…

1) Potassium nitrate is used in _________

  1. Salt B. Fertilizer C. Medicine               D. Glass

2) Which of the following has the smallest egg?

  1. Homo sapiens B. Ostrich C. Humming bird        D. Pigeon

3)  X–rays cannot penetrate through a sheet of __________

  1. Aluminium B. Paper                   C. Lead                    D. Wood

4) The purest form of carbon is _________

  1. Sugar charcoal B. Animal charcoal      C. Coconut charcoal    D. Wood charcoal

5) The acid used in car battery is _________

  1. Nitric acid B. Citric acid              C. Sulphuric acid         D. Hydrochloric acid

6) Bleaching powder is produced from- __________

  1. Calcium and Oxygen.
  2. Sodium, Hydrogen and Oxygen.
  3. Calcium, Oxygen and Chlorine.
  4. None of these.

7) Which is not a rare gas? ___________

  1. Helium.
  2. Argon.
  3. Neon.
  4. Radon.

8)Which is the allotrope of carbon? _____________

  1. Diamond.
  2. Gold.
  3. Silver.
  4. Copper.

9)Amalgam is a mixture of metal with- _____________

  1. Mercury.
  2. Gold.
  3. Iron.
  4. None of these.

10)The lightest and simplest atom is- ______________

  1. Oxygen.
  2. Hydrogen.
  3. Nitrogen.
  4. Carbon dioxide.

11) The gas usually filled in the electric bulb is ___________.

  1. Nitrogen
  2. hydrogen
  3. carbon dioxide
  4. Oxygen

 

12) Which of the gas is not known as greenhouse gas?

  1. Methane
  2. Nitrous oxide
  3. Carbon dioxide
  4. Hydrogen

13) The hardest substance available on earth is

  1. Gold
  2. Iron
  3. Diamond
  4. Platinum

 

14) The average salinity of sea water is

  1. 3%
  2. 3.5%
  3. 2.5%
  4. 2%

 

15) Heavy water is _____________

  1. deuterium oxide
  2. PH7
  3. rain water
  4. tritium oxide

 

16) Artificial silk is prepared from ___________.

  1. Wood pulp
  2. Wool
  3. Synthetic fibres
  4. Phloem fibres

 

17) Silviculture is study of __________.

  1. Fish rearing
  2. Planned forestry
  3. Garden plants
  4. Silkworm rearing

 

18) The metal present in haemoglobin is _________.

  1. Magnesium
  2. Iron
  3. Copper
  4. Zinc

 

19) _________ is used to produce artificial rain.

  1. Sand
  2. Silver iodide
  3. Silver nitrate
  4. Copper oxide

 

20) Tannic acid is present in ________.

  1. Sour milk
  2. Tea
  3. Grapes
  4. Lemon

-Team ScienceNow

 

Answers

1) C     2) A     3) D     4) A     5) C   6) C    7) D    8) A  9) A 10) B

11) A  1 2) D  1 3) C  1 4) B  1 5) A  C 16) B 17) B  18) C   19) B 20) B

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