When 4 mole, 3 mole and 1 mole of copper reacts with nitric acid, which types of oxide of nitrogen is formed respectively.

Options

A. `NO_(2), N_(2)O, NO`
B. `N_(2)O, NO, NO_(2)`
C. `NO, N_(2)O, NO_(2)`
D. `N_(2)O, N_(2)O_(3), N_(2)O_(4)`

Answer

B

Explanation

`4Cu(s) + underset("dilute")(10HNO_(3)) to 4Cu(NO_(3))_(aq) + N_(2)O(q) + 5H_(2)O (l)`
`3Cu_(s) + underset(8-10%)(4HNO_(3))(aq) to Cu(NO_(3))_(2)(aq) + 2NO(q) + 4H_(2)O(l)`
`Cu(s) + 4HNO_(3)(aq) to Cu(NO_(3))_(2) (aq) + 2NO_(2)(q) + 2H_(2)O (l)`
Thus `N_2O, NO` and `NO_2` gases are obtained respectively.