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Choose the correct option.
When KMnO₄ is heated with acidified oxalic acid, gas bubbles are evolved. These gas bubbles are…
When $\text{KMnO}_4$ is heated with acidified oxalic acid, gas bubbles are evolved. These gas bubbles are evolved due to the formation of:
- (a)$\text{SO}_2$
- (b)$\text{CO}_2$
- (c)$\text{SO}_3$
- (d)$\text{O}_2$
Answer
Answer
Correct option: (b)
Answer: (b) $\mathrm{CO_2}$
Acidified $\mathrm{KMnO_4}$ oxidises oxalic acid: $\mathrm{C_2O_4^{2-}}$ is oxidised to carbon dioxide, which escapes as bubbles.