What happens when (i) Sodium metal is dropped in water? (ii) Sodium metal is heated in free supply of air? (iii) Sodium peroxide dissolves in water?
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(a) MgCO3 (b) CaCO3 (c) SrCO3 (d) BaCO3
(a) KO2(b) CrO5(c) Na2O2 (d) BaO2
(a) Na (b) K (c) Li (d) Cs
Name the alkali metal which shows diagonal relationship with magnesium?
(a) Alkali metals show only +1 oxidation state. (b) Na and K impart colour to the flame but Mg does not.(c) Lithium on being heated in air mainly forms the monoxide and not the peroxide.(d) Li is the best reducing agent in aqueous solution.
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