Statement-I: In Duma`s method when organic compound is heated with cupric oxide, nitrogen of organic compound is converted to $N_{2}$
Statement –II: Cupric oxide oxidizes carbon and hydrogen to $C O_{2}$ and water vapor respectively.

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I is false and II is true

Both the statements are true

I is true and II is false

Both the statements are false

answer is A.

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Detailed Solution

$\begin{aligned} C_{x} H_{y} N_{z} + (2 x + \frac{y}{2}) CuO ⟶ \\ {xCO}_{2} + \frac{y}{2} H_{2} O + \frac{z}{2} N_{2} + (2 x + \frac{y}{2}) Cu \end{aligned}$

The above reaction is indication of the formation of the compounds during Dumas method.

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