1
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A zero order reaction has half life time of 0.2 minute. If initial concentration of reactant is $0.2 \mathrm{~mol} \mathrm{dm}^{-3}$. Find rate constant.

A
$0.2 \mathrm{~mol}^{-1} \mathrm{dm}^3 \mathrm{~min}^{-1}$
B
$0.5 \mathrm{~mol}^{-1} \mathrm{dm}^3 \mathrm{~min}^{-1}$
C
$1.4 \mathrm{~mol}^{-1} \mathrm{dm}^3 \mathrm{~min}^{-1}$
D
$6.0 \mathrm{~mol}^{-1} \mathrm{dm}^3 \mathrm{~min}^{-1}$
2
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The reaction given below $2 \mathrm{NH}_{3(\mathrm{g})} \xrightarrow{\mathrm{Pt}} \mathrm{N}_{2(\mathrm{g})}+3 \mathrm{H}_{2(\mathrm{g})}$ has rate of reaction $2.5 \times 10^{-6} \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{sec}^{-1}$ formation of $\mathrm{H}_{2(\mathrm{~g})}$ ?

A
$2.5 \times 10^{-6} \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{sec}^{-1}$
B
$3.75 \times 10^{-6} \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{sec}^{-1}$
C
$5.0 \times 10^{-6} \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{sec}^{-1}$
D
$7.5 \times 10^{-6} \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{sec}^{-1}$
3
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

For reaction $\mathrm{A}+\mathrm{B} \rightarrow$ product, rate of reaction is $3.6 \times 10^{-2} \mathrm{sec}^{-1}$. When $[\mathrm{A}]=0.2 \mathrm{moldm}^{-3}$ and $[B]=0.1 \mathrm{moldm}^{-3}$, calculate rate constant of reaction if reaction is first order in A and second order is B ?

A
$3.6 \mathrm{~mol}^{-2} \mathrm{dm}^6 \mathrm{sec}^{-1}$
B
$1.8 \mathrm{~mol}^{-2} \mathrm{dm}^{-6} \mathrm{sec}^{-1}$
C
$18 \mathrm{~mol}^{-2} \mathrm{dm}^6 \mathrm{sec}^{-1}$
D
$36 \mathrm{~mol}^{-2} \mathrm{dm}^{-6} \mathrm{sec}^{-1}$
4
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

For a reaction $\mathrm{r}=\mathrm{k}[\mathrm{A}][\mathrm{B}]^2$, if concentration of $A$ is doubled the rate of reaction

A
increases by 2
B
increases by 4
C
decrease by $\frac{1}{2}$
D
decreases by 2
MHT CET Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12