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Science · 2023 · 1 mark
CBSE 2023 · Region 6 · Set 1 · Q4
Two salts 'X' and 'Y' are dissolved in water separately. When phenolphthalein is added to these two solutions, the solution 'X' turns pink and the…
Two salts 'X' and 'Y' are dissolved in water separately. When phenolphthalein is added to these two solutions, the solution 'X' turns pink and the solution 'Y' does not show any change in colour, therefore 'X' and 'Y' are
Official answer
(A)
(X)-$\displaystyle \mathrm{Na}_{2} \mathrm{CO}_{3}$, (Y)-$\displaystyle \mathrm{NH}_{4} \mathrm{Cl}$
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CBSE Class 10 Science past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.