1
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

For a reaction $$\mathrm{A} \rightarrow$$ product, rate constant is $$2 \times 10^{-2} \mathrm{~s}^{-1}$$. The initial concentration of $$\mathrm{A}$$ is 1.0 mol dm$${ }^{-3}$$. What is the value of $$\log \frac{1}{[\mathrm{~A}]_{\mathrm{t}}}$$ after 100 seconds?

A
$$0.430 \mathrm{~mol} \mathrm{~dm}^{-3}$$
B
$$0.135 \mathrm{~mol} \mathrm{~dm}^{-3}$$
C
$$0.270 \mathrm{~mol} \mathrm{~dm}^{-3}$$
D
$$0.868 \mathrm{~mol} \mathrm{~dm}^{-3}$$
2
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify order of reaction if it's rate constant is x sec$$^{-1}$$.

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

For the reaction $$2 \mathrm{~A}+2 \mathrm{~B} \rightarrow 2 \mathrm{C}+\mathrm{D}$$ if $$\mathrm{r}=\mathrm{k}[\mathrm{A}]^2[\mathrm{~B}]^0$$, then rate of reaction is

A
inversely poportional to square of concentration of $$\mathrm{A}$$
B
independent of concentration of A
C
independent of concentration of $$\mathrm{B}$$
D
directly proportional to concentration of B
4
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

For a first order reaction, intercept of the graph between $$\mathrm{\log\frac{[A]_o}{[A]_t}}$$(Y-axis) and conc. (X-axis) is equal to

A
$$\mathrm{-\frac{k}{2.303~K}}$$
B
$$\mathrm{-\log[A]_o}$$
C
zero
D
$$\mathrm{\frac{2.303}{K}}$$
MHT CET Subjects
EXAM MAP