Question

Match column I with column II and select the correct option from the given codes.

Column I	Column II
P. Non-metal essential for respiration	(i) Nitrogen
Q. Non-metal used in fertilizers to enhance growth of plants	(ii) Chlorine
R. Non-metal used in water purification process	(iii) Iodine
S. Non-metal whose purple coloured solution is used as an antiseptic	(iv) Oxygen

• A. P-(iv), Q-(i), R-(ii), S-(iii)
• B. P-(ii), Q-(iv), R-(iii), S-(i)
• C. P-(iii), Q-(i), R-(iv), S-(ii)
• D. P-(i), Q-(iv), R-(ii), S-(iii)

Answer 1

The correct option is A P-(iv), Q-(i), R-(ii), S-(iii)

1. Oxygen is a non-metal essential for respiration.
2. Nitrogen is a non-metal used in fertilizers to enhance growth of plants.
3. Chlorine is a non-metal used in water purification process.
4. Iodine is a non-metal whose purple coloured solution is used as an antiseptic.