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How many different oxides are formed by nitrogen ?

  • two
  • three
  • four
  • five

Answer: Option A

Similar Questions :

1. Which acid is present in lemon ?

  • marlic acid
  • citric acid
  • lactic acid
  • tartaric acid

Answer: Option B

Explanation:

citric acid is present in lemon.

2. Air is a

  • compound
  • colloid
  • element
  • mixture

Answer: Option D

3. The most electronegative element among the following is

  • sodium
  • bromine
  • fluorine
  • oxygen

Answer: Option C

4. The gas used for artificial ripening of green fruit is ?

  • ethane
  • ethylene
  • carbon dioxide
  • acetylene

Answer: Option B

5. The luster of a metal is due to :

  • high polishing
  • high density
  • chemical inertness
  • presence of free electrons

Answer: Option D

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