1.

Na_(2)B_(4)O_(7)+H_(2)Ooverset("Conc. HCl")underset(Delta)rarrNaCl+X Xoverset(Delta)rarrY. The product Y in the reaction is

Answer»

CRYSTALLINE B
Amorphous B
`B_(2)O_3`
`H_(3)BO_(3)`

Answer :B


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