When copper is reacted with a certain concentration of nitric acid,nitric oxide and nitrogen dioxide are produced in equal volumes according to the following reaction:
$xCu + yHNO_3 \to xCu(NO_3)_2 + NO + NO_2 + 3H_2O$
What are the stoichiometric coefficients $x$ and $y$?

  • A
    $2$ and $6$
  • B
    $2$ and $3$
  • C
    $1$ and $3$
  • D
    $3$ and $8$

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