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

For the conversion of oxygen to ozone in the atmosphere, nitric oxide in gaseous phase acts as

A
enzyme catalyst
B
inhibitor
C
homogeneous catalyst
D
heterogeneous catalyst
2
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following group 15 elements does not exhibit allotropy?

A
N
B
As
C
Sb
D
Bi
3
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following oxides of nitrogen is called nitrogen sesquioxide?

A
$\mathrm{NO}_2$
B
$\mathrm{N}_2 \mathrm{O}_3$
C
$\mathrm{N}_2 \mathrm{O}_4$
D
$\mathrm{N}_2 \mathrm{O}_5$
4
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
$\frac{+d\left[\mathrm{SO}_2(g)\right]}{d t}=\frac{-d\left[\mathrm{O}_2(g)\right]}{d t}$
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