1.

underset(("Hydrated salt"))((A))underset("heated")overset("Strongly")rarr ubrace(B+C)_("Transparent glassy bead") H_(2)BO_(3) overset("Strongly")underset("heated")rarr C+D How many X-O-X linkages are present in structure of A(X = central atom)?

Answer»

4
3
5
2

Answer :C


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