Multiple choice

Which of the given statements about components of air is/are correct? (i) Nitrogen helps in diluting the effect of carbon dioxide. (ii) Oxygen supports combustion and burning. (iii) Noble gases are present in large quantities in air. (iv) Water vapours are present in large quantities in air.

 

  1. Only (i) and (ii)

  2. <span style="font-family:">Only<span style="font-family:"> (ii) and (iii)

  3. <span style="font-family:">Only<span style="font-family:"> (ii)

  4. <span style="font-family:">Only<span style="font-family:"> (ii) and (iv)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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