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MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

For a chemical reaction rate law is, rate $=k[A]^2[B]$. If $[A]$ is doubled at constant $[B]$, the rate of reaction

A
increases by a factor of 8
B
increases by a factor of 4
C
increases by a factor of 3
D
increases by a factor of 2
2
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In the reaction, $\mathrm{H}_2 \mathrm{O}_2(a q) \xrightarrow{\mathrm{I_{(aq)}^-}} \mathrm{H}_2 \mathrm{O}(I)+\frac{1}{2} \mathrm{O}_2(g)$ iodide ion acts as

A
homogenous catalyst
B
acid catalyst
C
heterogenous catalyst
D
enzyme catalyst
3
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For the elementary reaction $2 \mathrm{SO}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \longrightarrow 2 \mathrm{SO}_3(g)$, identify the correct among the following relations

A
$\frac{-d\left[\mathrm{SO}_2(g)\right]}{d t}=\frac{-d\left[\mathrm{O}_2(g)\right]}{d t}$
B
$\frac{+1}{2} \frac{d\left[\mathrm{SO}_3(g)\right]}{d t}=\frac{d\left[\mathrm{SO}_2(g)\right]}{d t}$
C
$\frac{+d\left[\mathrm{SO}_3(g)\right]}{d t}=\frac{-2 d\left[\mathrm{O}_2(g)\right]}{d t}$
D
$\frac{+d\left[\mathrm{SO}_2(g)\right]}{d t}=\frac{-d\left[\mathrm{O}_2(g)\right]}{d t}$
4
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following reaction is an example of a zero order reaction?

A
$\begin{aligned} \mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}(a q)+\mathrm{H}_2 \mathrm{O}(I) \longrightarrow & \mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6(a q) \\ & +\mathrm{C}_6 \mathrm{H}_{22} \mathrm{O}_6(a q)\end{aligned}$
B
$2 \mathrm{NH}_3(\mathrm{g}) \xrightarrow{\mathrm{Pt}} \mathrm{N}_2(g)+3 \mathrm{H}_2$
C
$2 \mathrm{H}_2 \mathrm{O}_2(I) \longrightarrow 2 \mathrm{H}_2 \mathrm{O}(I)+\mathrm{O}_2(g)$
D
$\mathrm{H}_2(g)+\mathrm{I}_2(g) \longrightarrow 2 \mathrm{HI}(g)$
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