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The most abundant element in the earth's crust is ?

  • Aluminium
  • Nitrogen
  • Silicon
  • Oxygen
Similar Questions :

1. The metal that is used as a catalyst in the hydrogenation of oils is ?

  • Pb
  • Ni
  • Cu
  • Pt

2. Biogas majorly contains ?

  • Ethane
  • Methane
  • Hydrogen
  • CO

3. Which is used in preparation of dynamite ?

  • glycerol
  • ethyl alcohol
  • methyl alcohol
  • glycol

4. Which gas is filled in refrigerators ?

  • Chlorofluorocarbon
  • Acetylene
  • Methane
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5. Which of the following is produced during the formation of photochemical smog ?

  • Nitrogen Oxides
  • Hydrocarbons
  • Methane
  • Ozone
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  • pawan parmar 9 years ago

    most abundant element in earth crust is oxygen.