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Which gas is used in fire extinguishers ?

  • Carbon dioxide
  • Nitrogen oxide
  • Carbon monoxide
  • Sulpher dioxide

Answer: Option A

Similar Questions :

1. Elements that show the properties of both metals and non metals are called ?

  • metalloids
  • allotropes
  • alloys
  • colloids

Answer: Option A

2. Chemical used in photography is

  • sodium sulphate
  • sodium sulphite
  • sodium thiosulphate
  • sodium oxalate

Answer: Option C

3. What is metallurgy ?

  • process of extracting metal in pure form from its ore.
  • process of creating alloys of metals.
  • process of making metals live long.
  • None of above.

Answer: Option A

4. The most electronegative element among the following is

  • sodium
  • bromine
  • fluorine
  • oxygen

Answer: Option C

5. Atomic number of an element gives

  • the number of nucleons in its atom
  • the number of electrons in its atom
  • the weight of the atom of the element
  • the total number of elementary particles in its atom

Answer: Option B

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