Question

The compound used as an antifreeze is

• A. Ethylene
• B. Acetylene
• C. Ethylene dichloride
• D. Ethylene glycol

Answer 1

The correct option is D

Ethylene glycol

Explanation for the correct option:

D: Ethylene glycol

1. Anti-freezing reagents are used to prevent the freezing of fluids.
2. The freezing point of water is high and we have to use the antifreeze reagent which have a low freezing point that is Ethylene glycol.
3. This can be used in automobile radiators for cooling.
4. The chemical formula of Ethylene glycol is ${\mathbf{C}}_{\mathbf{2}}{\mathbf{H}}_{\mathbf{6}}{\mathbf{O}}_{\mathbf{2}}$
5. Hence, the compound used as an anti-freeze reagent is Ethylene glycol, so option D is correct.

Explanation for the incorrect option:

A: Ethylene

1. The chemical formula of Ethylene is ${\mathbf{C}}_{\mathbf{2}}{\mathbf{H}}_{\mathbf{4}}$.
2. Ethylene can be used for making fibres, alcohol, fabricated plastics.
3. It can also be used in many textile industries as well.
4. Hence, option A is incorrect.

B: Acetylene

1. The chemical formula of Acetylene is ${\mathbf{C}}_{\mathbf{2}}{\mathbf{H}}_{\mathbf{2}}$
2. Acetylene can be used basically in welding.
3. It can also be used as raw materials for the production of different chemicals.
4. Hence, option B is incorrect.

C: Ethylene dichloride

1. The chemical formula of Ethylene dichloride is ${\mathbf{C}}_{\mathbf{2}}{\mathbf{H}}_{\mathbf{4}}{\mathbf{Cl}}_{\mathbf{2}}$.
2. Ethylene dichloride is the harmful reagent used in industries for making pipes, doors, wire, cable film sheets, etc.
3. Hence, option C is incorrect.

Therefore, the compound used as an anti-freeze reagent is Ethylene glycol, so option D is correct.