The element Z burns in air to form an oxide. The aqueous solution of this oxide turns blue litmus to red. The element Z is most likely to be:
carbon
calcium
iron
magnesium

Academic Chemistry NCERT Class 8

Correct Answer: A. carbon

Explanation: Carbon is a nonmetal. Nonmetals form oxides which are acidic in nature. Oxide of carbon is acidic and hence, its aqueous solution will turn blue litmus to red.

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Updated on: 10-Oct-2022

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