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JEE Main 20206 SeptemberEvening Shift
Exam
JEE Main
Year
2020
Date
6 September
Shift
Evening Shift
Subject
Chemistry
Chapter
s Block Elements

JEE Main 2020 · 6 September · Evening Shift · Chemistry · s Block Elements

Match the following compounds (Column-I) with their uses...

Match the following compounds (Column-I) with their uses (Column-II)

S. No. Column-I S.No. Column-II
(I) Ca(OH)2Ca{\left(OH\right)}_{2} (A) casts of statues
(II) NaClNaCl (B) white wash
(III) CaSO4⋅12H2O{CaSO}_{4} \cdot \dfrac{1}{2}{H}_{2}O (C) antacid
(IV) CaCO3{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)2Ca{\left(OH\right)}_{2} is used in white wash.

(ii) Plaster of paris is used in making of molds for plaster statues.

(iii) NaClNaCl is used in preparation of washing soda.

(iv) A suspension of Mg(OH)2Mg{\left(OH\right)}_{2} in water is used in medicine as an antacid under name of milk of magnesia.

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