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Arrange the following compounds accordin...

Arrange the following compounds according to the extent of hydration.
i.

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Carbonyl group exists as hydrate.

The extent of hydration increases as the group's tendency to form H-bonding increases. In general, hydration of aldehyde is greater than that of ketone. Electron-withdrawing group increases and electron-donating group decreases the extent of hydration.
a. `(iv)gt(iii)gt(ii)gt(i)`
b. `(v)gt(iv)gt(iii)gt(ii)gt(i)`
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