Redox and Equivalent ConceptHard

Question

When copper is treated with a certain concentration of nitric acid, nitric oxide and nitrogen dioxide are liberated in equal volumes according to the following equation.

XCu + YHNO3 → Cu(NO3)2 + NO + NO2 + H2O

The coefficients of X and Y are, respectively,

Options

A.2 and 3
B.2 and 6
C.1 and 3
D.3 and 8

Solution

$2Cu + 6HNO_{3} \rightarrow 2Cu\left( NO_{3} \right)_{2} + NO + NO_{2} + 3H_{2}O$

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