Make the correct pairs from below mentioned $X$ and $Y$ .
X Y
(a) Dehydrating agent (1) Sulphur dioxide gas
(b) In Preparation of fire crackers (2) Concentrated sulphuric acid
(c) Weak bleaching agent (3) Dihydrogen gas
(d) Lightest gas (4) Sulphur

(a - 2), (b - 4), (c - 1), (d - 3)

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(a - 3), (b - 2), (c - 4), (d - 1)

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(a - 4), (b - 3), (c - 1), (d - 2)

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(a - 3), (b - 1), (c - 2), (d - 4)

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Solution

The correct option is A (a - 2), (b - 4), (c - 1), (d - 3)
Concentrated sulphuric acid has strong affinity for water. Hence, it acts as a powerful dehydrating agent.
Sulphur is used in Preparation of fire crackers. In fire crackers, potassium nitrate, sulphur and aluminium are used.
Sulphur dioxide gas acts as Weak bleaching agent due to reduction. Bleaching action is temporary.
Dihydrogen gas is the Lightest gas. It is lighter than air.

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X	Y
(a) Dehydrating agent	(1) Sulphur dioxide gas
(b) In Preparation of fire crackers	(2) Concentrated sulphuric acid
(c) Weak bleaching agent	(3) Dihydrogen gas
(d) Lightest gas	(4) Sulphur

Make the correct pairs from below mentioned X and Y.XY(a) Dehydrating agent(1) Sulphur dioxide gas(b) In Preparation of fire crackers(2) Concentrated sulphuric acid (c) Weak bleaching agent(3) Dihydrogen gas(d) Lightest gas(4) Sulphur

Make the correct pairs from below mentioned $X$ and $Y$ .
X Y
(a) Dehydrating agent (1) Sulphur dioxide gas
(b) In Preparation of fire crackers (2) Concentrated sulphuric acid
(c) Weak bleaching agent (3) Dihydrogen gas
(d) Lightest gas (4) Sulphur