Write the name of the enzyme involved in the given reaction at X.
`CO_(2) + H_(2)O overset (X)hArr H_(2)CO_(3) overset(X) hArr HCO_(3)^(-)+H^(+)`

Identify the products in the following reactions. Write the IUPAC names and mention the mechanism involved in the reactions. (i) cyclopentanol overset(H_(2)SO_(4))underset(Delta) to (ii) "butan"-1-ol overset(NaBr) underset(H_(2)SO_(4)) to (iii) neopentyl alcohol overset(PCl_(5)) to