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An Intiative by Sri Chaitanya
a
The heats of hydration of the dipositive alkaline earth metal ions decrease with an increase in their ionic size.
b
NaNO3 form Na2O on heating
c
Hydration of alkali metal ion is less than that of IIA group
d
Alkaline earth metal ions, because of their much larger charge to size ratio, exert a much stronger electrostatic attraction on the oxygen of water molecule surrounding them
answer is B.
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