\( \mathrm{NaHCO}_{3} \) when treated with acids it may evolve \( \...

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\( \mathrm{NaHCO}_{3} \) when treated with acids it may evolve \( \mathrm{CO}_{2} \).
P Acids which are stronger \& comparable acidic with

W \( \mathrm{H}_{2} \mathrm{CO}_{3} \) may evolve \( \mathrm{CO}_{2} \). Such acids are also soluble in aq. \( \mathrm{NaHCO}_{3} \) and aq. \( \mathrm{NaOH} \) solution.
Which of the following are soluble in aq. \( \mathrm{NaOH} \) solution.
(1)
(2)
(3)
(4)
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