1.

Match the following {:("List-I"," List-II "),((A) NaOH,"(I) Antacid"),((B) NaHCO_(3),"(II) Food preservative"),((C) NaNO_(2),"(III) Mercerising cotton "),((D) NaNO_(3),"(IV) Fertiliser"):}

Answer»

`{:(A,B,C,D),(I,II, III, IV):}`
`{:(A,B,C,D),(III,I, IV, II):}`
`{:(A,B,C,D),(III,I, II, IV):}`
`{:(A,B,C,D),(I,III, II, IV):}`

ANSWER :C


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