A pH paper was split into two parts. One part was dipped into an aqueous solution of a compound X which turned the paper red. Another part of the same paper was dipped into an aqueous solution of a compound Y which turned the paper violet.
Identify the nature of the solutions.

[1mark]

X is basic, Y is acidic

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Both X and Y are basic

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Both X and Y are acidic

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X is acidic, Y is basic

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Solution

The correct option is D X is acidic, Y is basic
A pH paper, also known as the universal indicator, exhibits colour changes in acidic, basic and neutral solutions. It turns red in the presence of a strongly acidic medium, while it turns violet in the presence of a strongly basic medium.
Given that the aqueous solution of X turns the pH paper red while the aqueous solution of Y turns the pH paper violet, it can be concluded that X is acidic while Y is basic.

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A pH paper was split into two parts. One part was dipped into an aqueous solution of a compound X which turned the paper red. Another part of the same paper was dipped into an aqueous solution of a compound Y which turned the paper violet. Identify the nature of the solutions. [1mark]

A pH paper was split into two parts. One part was dipped into an aqueous solution of a compound X which turned the paper red. Another part of the same paper was dipped into an aqueous solution of a compound Y which turned the paper violet.
Identify the nature of the solutions.

[1mark]