1
AP EAPCET 2022 - 4th July Evening Shift
+1
-0

The time required for completion of $$93.75 \%$$ of a first order reaction is $$x$$ minutes. The half-life of it (in minutes) is

A
x/8
B
x/2
C
x/4
D
x/3
2
AP EAPCET 2022 - 4th July Morning Shift
+1
-0

. The rate constant for a zero order reaction $$A \longrightarrow$$ products is $$0.0030 \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~S}^{-1}$$. How long it will take for the initial concentration of $$A$$ to fall from 0.10 M to 0.075 M ?

A
10 s
B
20 s
C
8.33 s
D
1.33 s
3
AP EAPCET 2021 - 20th August Morning Shift
+1
-0

Which statement among the following is incorrect?

A
Unit of rate of reaction is $$\mathrm{m} \mathrm{s}^{-1}$$.
B
Unit of rate of disappearance is $$\mathrm{m} \mathrm{s}^{-1}$$.
C
Unit of rate constant $$k$$ depends upon order of reaction.
D
Unit of rate constant $$k$$ for a first order reaction is $$\mathrm{m} \mathrm{s}^{-1}$$.
4
AP EAPCET 2021 - 20th August Morning Shift
+1
-0

For zero order reaction, a plot of $$t_{1 / 2}$$ versus $$[A]_0$$ will be

A
a straight line passing through the origin and slope $$=k$$
B
a horizontal line (parallel to $$x$$-axis)
C
a straight line with slope $$-k$$
D
a straight line passing through origin and slope $$=\frac{1}{2 k}$$
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