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Q. Addition of mineral acid to an aqueous solution of Borax, the following compound is formed

KCETKCET 2017The p-Block Elements

Solution:

$Na _{2} B _{4} O _{7}+ H _{2} SO _{4}+5 H _{2} O \to Na _{2} SO _{4}+4 H _{3} BO _{3}$

Addition of mineral acid to an aqueous solution of borax, orthoboric acid is formed