Question Detail

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

  • Aluminium
  • Nitrogen
  • Silicon
  • Oxygen
Similar Questions :

1. Which one of the following metals does not react with water to produce Hydrogen?

  • Cadmium
  • Lithium
  • Potassium
  • Sodium

2. What is a mixture of potassium nitrate powdered charcoal and sulphur called?

  • paint
  • aluminium
  • brass
  • gun powder

3. Which of the following is produced during the formation of photochemical smog ?

  • Nitrogen Oxides
  • Hydrocarbons
  • Methane
  • Ozone

4. Oxides of metals are alkaline.

  • TRUE
  • FALSE

5. Which of the following elements behave chemically both as a metal and a non metal?

  • Boron
  • Carbon
  • Argon
  • Mercury
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