1.

Match the Following `{:(,"Column - A",,,"Column - B"),((A),"Distilled water","( )",(a),"Drinking purpose"),((B),"Potable water","( )",(b),"Laboratory work"),((C),"Spring water","( )",(c),"Dissolved salts and rare minerals"),((D),"Acidulated water","( )",(d),"Medicinal purposes"),(,,"( )",(e),"Electrolysis"):}`A. A `rarr` b, B `rarr` a, C `rarr` d, c, D `rarr` eB. A `rarr` c, B `rarr` b, C `rarr` c, e, D `rarr` dC. A `rarr` b, B `rarr` c, C `rarr` d, D `rarr` eD. A `rarr` a, B `rarr` c, e, C `rarr` d, e, D `rarr` d

Answer» Correct Answer - A
A `rarr` b: Distilled water is used in laboratory for chemical reactions taking place in water.
B `rarr` a: Potable water is used for drinking purpose.
C `rarr` d, c: Spring water is devoid of suspended impurities but contains dissolved salts and minerals. Due to the presence of rare minerals it is used for medicinal purposes.
D `rarr` e: Pure water is a bad conductor of electricity, little amount of sulphuric acid is added to make acidulated water.


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