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Question

12 g of impure cyanogen undergoes hydrolysis by two different paths.
i. (CN)2+4H2O(NH4)2C2O4
ii. (CN)2+2H2ONH2CONH2
When 11.52 g of pure ammonium carbonate [(NH4)2CO3] was heated, the exact amount of urea was obtained. 20 mL of 1.6 M acidic KMnO4 is required to completely oxidise.
The percentage progress of the reaction in path (ii) is:

A
40%
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B
60%
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C
30%
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D
70%
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Solution

The correct option is A 60%
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