Which of the following reaction gives nitrogen monoxide gas ?

Options

A. `4Cu_(s) + 10HNO_(3) ("dil. Aq") to`
B. `Cu_(s) + 4HNO_(3)("conc, aq") to`
C. `3Cu_(s) + 8HNO_(3) (10-30% "aq")) to`
D. `C_(s) + 4HNO_(3)(l) to`

Answer

C

Explanation

`3Cu_(s) + 8HNO_(3)(10-30%) aq to Cu(NO_(3))_(2)(aq) + 2NO_(g) + 4H_(2)O(l)`