Make the correct pairs from below mentioned (X) and (Y)
(a-3)
The chemical formula of sulphurous acid is H2SO3.
The structure of sulphurous acid is:
(b-4)
The chemical formula of sulphuric acid is H2SO4.
The structure of sulphuric acid is:
(c-2)
Oleum is also known as fuming sulphuric acid. The chemical formula of oleum is H2S2O7.
The structure of oleum is:
(d-1)
The chemical formula of phosphoric acid is H3PO4.
The structure of phosphoric acid is:
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