1
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The order of reaction for which the units of rate constant are $$\mathrm{mol} \mathrm{~dm}^{-3} \mathrm{~s}^{-1}$$ is

A
2
B
1
C
0
D
3
2
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is rate constant of a first order reaction if 0.08 mole of reactant reduces to 0.02 mole in 23.03 minute?

A
$$0.2303 \mathrm{~min}^{-1}$$
B
$$1.6021 \mathrm{~min}^{-1}$$
C
$$0.4031 \mathrm{~min}^{-1}$$
D
$$0.06021 \mathrm{~min}^{-1}$$
3
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statements is NOT true for a reaction having rate law $$\mathrm{r}=\mathrm{k}\left[\mathrm{H}_2\right]\left[\mathrm{I}_2\right]$$ ?

A
The reaction is first order in $$\mathrm{H}_2$$
B
Overall order of reaction is 1
C
The reaction is first order in $$\mathrm{I}_2$$
D
Overall order of reaction is 2
4
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

For the reaction $$\mathrm{N}_{2(\mathrm{~g})}+3 \mathrm{H}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{NH}_{3(\mathrm{~g})}$$, what is the relation between $$\frac{\mathrm{d}\left[\mathrm{N}_2\right]}{\mathrm{dt}}$$ and $$\frac{\mathrm{d}\left[\mathrm{H}_2\right]}{\mathrm{dt}}$$ ?

A
$$3 \frac{\mathrm{d}\left[\mathrm{H}_2\right]}{\mathrm{dt}}=\frac{\mathrm{d}\left[\mathrm{N}_2\right]}{\mathrm{dt}}$$
B
$$\frac{\mathrm{d}\left[\mathrm{H}_2\right]}{\mathrm{dt}}=3 \frac{\mathrm{d}\left[\mathrm{N}_2\right]}{\mathrm{dt}}$$
C
$$3 \frac{\mathrm{d}\left[\mathrm{H}_2\right]}{\mathrm{dt}}=2 \frac{\mathrm{d}\left[\mathrm{N}_2\right]}{\mathrm{dt}}$$
D
$$\frac{\mathrm{d}\left[\mathrm{H}_2\right]}{\mathrm{dt}}=\frac{\mathrm{d}\left[\mathrm{N}_2\right]}{\mathrm{dt}}$$
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