Question

Give a chemical change which a gas as liberated is a double displacement reaction

Answer 1

Answer:

Double decomposition: This is a type of chemical change in which two compounds in a solution react to form two new compounds by mutual exchange of radicals.

Answer 2

(c) Iron (III) oxide on heating with carbon monoxide gas reacts to form solid iron and liberates carbon dioxide gas. (d) Hydrogen sulphide gas reacts with oxygen gas to form solid sulphur and liquid water. Answer. This is a double displacement and a precipitation reaction.

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