Question

Which of the following is a first order reaction.

• A. $NH_{4}NO_{2} \rightarrow N_{2} + 2H_{2}O$
• B. $2HI$$H_{2} + I_{2}$
• C. $2NO_{2} \rightarrow 2NO + O_{2}$
• D. $2NO + O_{2} \rightarrow 2NO_{2}$

Answer 1

Answer: (A)

$NH_{4}NO_{2} \rightarrow N_{2} + 2H_{2}O$

Answer 2

It is a standard example of first order because in that reaction rate of reaction affected by only one concentration term.