1
MHT CET 2024 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the order of following reaction

$$2 \mathrm{H}_2 \mathrm{O}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{H}_2 \mathrm{O}_{(\mathrm{l})}+\mathrm{O}_{2(\mathrm{~g})}$$

A
1
B
0
C
3
D
2
2
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Half life of a first order reaction is 1 hour. What fraction of it will remain after 3 hour?

A
$\frac{1}{8}$
B
$\frac{1}{9}$
C
$\frac{1}{16}$
D
$\frac{1}{64}$
3
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In the Arrhenius plot of logk versus $1 / T$ find the value of intercept on $y$ axis

A
$ \log _{10} \mathrm{A}$
B
$\frac{-\mathrm{Ea}}{\mathrm{R}}$
C
$\mathrm{lnk}$
D
$\mathrm{R / E_a}$
4
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For the reaction,

$$3 \mathrm{I}_{\mathrm{(aq.)}}^{-}+\mathrm{S}_2 \mathrm{O}_{8(\mathrm{aq.})}^{2-} \longrightarrow 2 \mathrm{SO}_{4(\mathrm{aq.})}^{2-}+\mathrm{I}_{3(\mathrm{aq.})}^{-}$$

rate of formation of $\mathrm{SO}_{4(\mathrm{aq.})}^{2-}$ is $0.044 \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{~s}^{-1}$.

Calculate rate of consumption of $\mathrm{I}_{(\mathrm{aq.})}^{-}$.

A
$0.022 \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{~s}^{-1}$
B
$0.044 \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{~s}^{-1}$
C
$0.066 \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{~s}^{-1}$
D
$0.088 \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{~s}^{-1}$
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