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Question

Study the given flowchart, and identify X and Y. ​


A
X: Base, Y: Acid
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B
X: Acid, Y: Base
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C
X: Acid, Y: Acid
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D
X: Base, Y: Base
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Solution

The correct option is B X: Acid, Y: Base
Metal carbonates react with acids to give carbon dioxide gas. Hence, X is an acid.

Non-metal oxides combine with a base to produce salt and water. The reason behind is the acidic nature of non-metal oxides. Hence, Y is a base.

Acids and bases react to give salt and water along with evolution of heat.

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