Sodium Peroxide is _____________ in colour and potassium superoxide is used as a source of _____________(a) blue, yellow(b) yellow, hydrogen(c) blue, oxygen(d) yellow, oxygenThe question was asked in a national level competition.Origin of the question is s-Block Elements topic in section s-Block Elements of Chemistry – Class 11

Sodium Peroxide is _____________ in colour and potassium superoxide is

1.	Sodium Peroxide is _____________ in colour and potassium superoxide is used as a source of _____________(a) blue, yellow(b) yellow, hydrogen(c) blue, oxygen(d) yellow, oxygenThe question was asked in a national level competition.Origin of the question is s-Block Elements topic in section s-Block Elements of Chemistry – Class 11
Answer» Correct choice is (d) yellow, oxygen To explain: Sodium Peroxide acquires yellow colour DUE to the presence of superoxide as an impurity. POTASSIUM superoxide is used as a SOURCE of oxygen in submarines, space shuttles and an EMERGENCY breathing apparatus such as oxygen masks.

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