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20/09/2020 8:01 pm
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Match the following compounds (Column-I) with their uses (Column-II):
Column-I - Column-I
(I) Ca(OH)2 - (A) casts of statues
(II) NaCl - (B) white wash
(III) CaSO4.1/2H2O - (C) antacid
(IV) CaCO3 - (D) washing soda preparation
(1) (I)-(D), (II)-(A), (III)-(C), (IV)-(B)
(2) (I)-(B), (II)-(D), (III)-(A), (IV)-(C)
(3) (I)-(D), (II)-(D), (III)-(B), (IV)-(A)
(4) (I)-(B), (II)-(C), (III)-(D), (IV)-(A)
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20/09/2020 8:02 pm
(2) (I)-(B), (II)-(D), (III)-(A), (IV)-(C)
Explanation:
(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