MCQ
How can you synthesise nitric oxide in the laboratory?
- AZinc with cold and dilute $HNO_3$
- B$Zn$ with conc. $HNO_3$
- ✓Copper with cold and dilute $HNO_3$
- DHeating $NH_4NO_3$
✓
Answer
Correct option: C.
Copper with cold and dilute $HNO_3$
c
Copper reacts with cold and dilute nitric acid to produce copper nitrate, water and nitric oxide.
Copper reacts with cold and dilute nitric acid to produce copper nitrate, water and nitric oxide.
$Cu +\text { cold } HNO _3 \rightarrow 3 Cu \left( NO _3\right)_2+4 H _2 O +2 NO$
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