1.

The chemical formula for 'laughing gas' is

A. \[{{N}_{2}}O\] (Nitrous oxide)
B. \[NO\] (Nitric oxide)
C. \[N{{O}_{2}}\] (Nitrogen dioxide)
D. \[{{N}_{2}}{{O}_{5}}\] (Nitrogen pentoxide)
Answer» B. \[NO\] (Nitric oxide)


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