Question

Match the entries of column I with column II.

Material	Exception
(a) Iodine (Non-metal)	(i) Exists in liquid state
(b) Diamond (Non-metal)	(ii) Conducts electricity
(c) Mercury (Metal)	(iii) Lustrous
(d) Graphite (Non-metal)	(iv) Hardest natural substance

• A. (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
• B. (a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
• C. (a) - (iv), (b) - (iii), (c) - (i), (d) - (ii)
• D. (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)

Answer 1

The correct option is B

(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)

Iodine (Non-metal):- Being a non-metal it is lustrous i.e. it has a shiny surface

Diamond (Non-metal):- Being a non-metal it is the hardest substance and hardness is the characteristic property of metals.

Mercury (Metal):- Being a metal it is found in liquid state at room temperature.

Graphite (Non-metal):- Being a non-metal it conducts electricity and it is also lustrous.