JEE Main 2020Chemistrys Block ElementsEasyMCQ

JEE Main 2020s Block Elements Question with Solution

JEE Main 2020 (06 Sep Shift 2)

Question

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

S. No. Column-I S.No. Column-II
(I) CaOH2 (A) casts of statues
(II) NaCl (B) white wash
(III) CaSO4·12H2O (C) antacid
(IV) CaCO3 (D) washing soda preparation

 

Choose an option

Show full solutionCorrect option: B
Correct answer
B(I)-(B), (II)-(D), (III)-(A), (IV)-(C)

Step-by-step explanation

(i) CaOH2 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 MgOH2 in water is used in medicine as an antacid under name of milk of magnesia.

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About this question

This is a previous-year question from JEE Main 2020, covering the s Block Elements chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.