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An organic compound 'X' is a constituent of wine. ‘X' on reacting with acidified $\ce{K2Cr2O7}$ forms another compound 'Y' with molecular formula $\ce{C2H4O2}$. 'Y' produces brisk effervescence with sodium carbonate.
(i) Identify 'X' and 'Y'.
(ii) Name the gas evolved when 'Y' reacts with sodium carbonate.
(iii) Write the chemical equations involved for the chemical reactions taking place.
(i) Identify 'X' and 'Y'.
(ii) Name the gas evolved when 'Y' reacts with sodium carbonate.
(iii) Write the chemical equations involved for the chemical reactions taking place.
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(i)
$\bullet$ X - Ethanol/ $\ce{C2H5OH}$ ($\frac{1}{2}$ Mark)
$\bullet$ Y - Ethanoic acid/ acetic acid/ $\ce{CH3COOH}$ ($\frac{1}{2}$ Mark)
(ii) Carbon dioxide/ $\ce{CO2}$ (1 Mark)
(iii)
$\bullet$ $\ce{C2H5OH ->[Acidified K2Cr2O7] CH3COOH}$ ($\frac{1}{2}$ Mark)
$\bullet$ $\ce{2CH3COOH + Na2CO3 -> 2CH3COONa + H2O + CO2}$ ($\frac{1}{2}$ Mark) (Don't deduct marks if balancing is not done)
$\bullet$ X - Ethanol/ $\ce{C2H5OH}$ ($\frac{1}{2}$ Mark)
$\bullet$ Y - Ethanoic acid/ acetic acid/ $\ce{CH3COOH}$ ($\frac{1}{2}$ Mark)
(ii) Carbon dioxide/ $\ce{CO2}$ (1 Mark)
(iii)
$\bullet$ $\ce{C2H5OH ->[Acidified K2Cr2O7] CH3COOH}$ ($\frac{1}{2}$ Mark)
$\bullet$ $\ce{2CH3COOH + Na2CO3 -> 2CH3COONa + H2O + CO2}$ ($\frac{1}{2}$ Mark) (Don't deduct marks if balancing is not done)