First slide

Orthoboric acid

Question

Borax is used as cleansing agent because on dissolving in water it gives

Easy

A

alkaline solution
B

acidic solution
C

bleaching solution
D

basic solution

Solution

$\large N{a_2}{B_4}{O_7} + 2{H_2}O \to \mathop {2NaOH}\limits_{Strong\,base} + \mathop {{H_2}{B_4}{O_7}}\limits_{Tetra\,boric\,acid}$
Borax undergoes cationic hydrolysis ,hence its aqueous solution is alkaline in nature.Due to alkaline nature it is used as cleansing agent.

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