Question

The transformation occurring in Duma's method is given below:

\[\ce{C2H7N + (2x + \frac{y}{2}) CuO -> xCO2 + \frac{y}{2} H2O + \frac{z}{2} N2 + (2x + \frac{y}{2}) Cu}\]

The value of y is ______. (Integer answer)

Options

• 1

• 6

• 7

• 0

Answer 1

7

Explanation:

\[\ce{C2H7N + (2x + \frac{y}{2}) CuO -> xCO2 + \frac{y}{2} H2O + \frac{z}{2} N2 + (2x + \frac{y}{2}) Cu}\]   ...(i)

\[\ce{C_xH_yN_z + (2x + \frac{y}{2}) CuO -> xCO2 + \frac{y}{2} H2O + \frac{z}{2} N2 + (2x + \frac{y}{2}) Cu}\]   ...(ii)

Comparing (i) & (ii), we get: x = 2, y = 7, z = 1.