Class VIII

The non-metal which is liquid at room temperature is:
  1. Carbon
  2. Iodine
  3. Bromine
  4. Chlorine.
Non metals are generally _ . 
  1. Hard and ductile 
  2. Soft and brittle 
  3. Hard and brittle 
  4. Soft and ductile 
A metal which is found in liquid state at room temperature is ...
  1. Sodium
  2. Mercury
  3. Potassium
  4. Aluminium
Materials having the properties of both metals and non metals are called _____.
  1. Metalloids
  2. Noble metals
  3. Alloys
  4. Mixtures
When non-metals react with water then
  1. Hydrogen gas is formed
  2. Carbon dioxide gas is formed
  3. Non-metals do not react with water
  4. None of these.
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