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25/12/2021 1:47 pm
Topic starter
Which is incorrect statement?
(a) The heats of hydration of the dipositive alkaline earth metal decrease with an increase in their ionic size
(b) NaNO3 forms Na2O2 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
1 Answer
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25/12/2021 1:50 pm
Correct answer: (b) NaNO3 forms Na2O2 on heating
Explanation:
NaNO3\(\overset{\Delta}{\longrightarrow}\) Na2O2 + O2