In the diagram above, the gas produced is?
Attached Figure / Diagram
A
NO
B
NO2
C
N2O
D
N2O4
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
In the laboratory, nitrogen monoxide (NO), also known as nitric oxide, is commonly prepared by the reduction of dilute nitric acid with copper, resulting in the formation of copper(II) nitrate, water, and nitrogen monoxide gas.
The chemical equation for this reaction is: 4HNO\(_3\) + Cu → Cu(NO\(_3\))\(_2\) + 2NO + 4H\(_2\)O
Source: WAEC / JAMB / NECO Classroom Archive (Record #31667)