Match the following and choose the corre

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Target Exam

CUET

Subject

General Test

Chapter

General Knowledge

Topic

Chemistry

Question:

Match the following and choose the correct option.

Compound	Uses
(a) Bleaching powder	(i) plaster for supporting fractured bones in the right position.
(b) Baking soda	(ii) in removing permanent hardness of water
(c) Washing soda	(iii) to neutralize excess acid in the stomach and provide relief
(d) Plaster of Paris	(iv) to make drinking water free from germs

Options:

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

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

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

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

Correct Answer:

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

Explanation:

The correct answer is option 3. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i).

Here's the explanation for each match:

(a) Bleaching powder (CaOCl₂): Used as a disinfectant and bleaching agent, not for setting bones (iv).

(b) Baking soda (NaHCO₃): Commonly used as an antacid to neutralize stomach acid (iii).

(c) Washing soda (Na₂CO₃): Effective in removing water hardness (ii).

(d) Plaster of Paris (CaSO₄·½H₂O): Primarily used for making casts and molds, including those supporting broken bones (i).

Therefore, option 3 correctly matches the compounds with their respective uses.