in an experiment , an acid X was react with base Y to five a salt Z , Identify X, Y, Z,
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Explanation:
The compounds X, Y and Z are borax, sodium metaborate + boric anhydride and boric acid respectively.
When borax is heated, it first swells and then forms a transparent glass like bead of sodium meta borate and boric anhydride.
BoraxNa2B4O7heatsodium metaborate2NaBO2+Boric anhydrideB2O3+10H2O
Aqueous solution of borax is alkaline due to formation of strong base NaOH.
Hence, it turns red litmus blue.
Na2B4O7+7H2O→4H3BO3+2NaOH
Borax reacts with sulphuric acid to form boric acid and sodium sulphate.
BoraxNa2B4O7+H2SO4+5H2O→Boric acid4H3BO3+Sodium sulphateNa2SO4
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