JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Which of the following is a use of alum? [WB-JEE 2006]

(A)Making explosives
(B)Bleaching clothes
(C)Water softeningCorrect
(D)All of these

Answer: (C)

Solution

Alums are used as water softeners (besides tanning leather, as mordants in dyeing, and as styptics); they are not used for making explosives or bleaching

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Question ID VK-138230