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Which of the following is/are not characteristic property(ies) of alkaline earth metals ?
(i) All alkaline earth metal oxides are basic in nature and forms sparingly soluble hydroxides with water.
(ii) The hydrated chlorides, bromides and iodies of Ca, Sr and Ba on heating undergoes hydrolysis while corresponding hydrated halides of Be and Mg on heating undergo dehydration.
(iii) Nitrates of alkaline earth metals decompose on heating as below 2 M(NO_3)_2→ 2 MO+4 NO_2+O_2
(a) (i) only
(b) (ii) only
(c) (i) and (iii)
(d) (i) and (ii)

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