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Match List-I with List-II List-I (a) Ca(OCl)2 (b) CaSO4 · 1/2 H2O (c) CaO (d) CaCO3 List-II (i) Antacid (ii) Cement (iii) Bleach (iv) Plaster of paris Choose the most appropriate answer from the options given below :

1. a-i, b-iv, c-iii, d-ii
2. a-iii, b-ii, c-i, d-iv
3. a-iii, b-iv, c-i, d-ii
4. a-iii, b-iv, c-i, d-iv

Correct answer: a-iii, b-iv, c-i, d-iv

Solution

The correct option matches each compound with its primary use: Ca(OCl)2 is commonly used as a bleaching agent, CaSO4 · 1/2 H2O is known as plaster of Paris, CaO is used as an antacid, and CaCO3 is often utilized in cement production.

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