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Question:

Match List-I (substances) with List-II (processes) employed in the manufacture of the substances and select the correct option:
List I List II
(Substances) (Processes)
(a) Sulphuric acid (i) Haber's process
(b) Steel (ii) Bessemer's process
(c) Sodium hydroxide (iii) Leblanc process
(d) Ammonia (iv) Contact process

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

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

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

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

Solution:

(a) Sulphuric acid is manufactured by using the Contact process
(b) Steel is prepared by Bessemer's process
(c) Sodium hydroxide is prepared by the Leblanc process
(d) Ammonia is manufactured by Haber's process.