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JEE Main20206 Sep 2020Evening ShiftChemistrys Block ElementsActual

Match the following compounds (Column-I) with their uses (Column-II) S. No. Column-I S.No. Column-II (I) Ca OH 2 (A) casts of statues (II) NaCl (B) white wash (III) CaSO 4 · 1 2 H 2 O (C) antacid (IV) CaCO 3 (D) washing soda preparation

Options

  1. A(I)-(D), (II)-(A), (III)-(C), (IV)-(B)
  2. B(I)-(B), (II)-(D), (III)-(A), (IV)-(C)
  3. C(I)-(B), (II)-(C), (III)-(D), (IV)-(A)
  4. D(I)-(D), (II)-(C), (III)-(B), (IV)-(A)

Correct answer

B. (I)-(B), (II)-(D), (III)-(A), (IV)-(C)

Step-by-step solution

(i) Ca OH 2 is used in white wash. (ii) Plaster of paris is used in making of molds for plaster statues. (iii) NaCl is used in preparation of washing soda. (iv) A suspension of Mg OH 2 in water is used in medicine as an antacid under name of milk of magnesia.

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