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1
KCET 2017
MCQ (Single Correct Answer)
+1
-0
For a reaction $\frac{1}{2} A \rightarrow 2 B$ rate of disappearance of $A$ is related to rate of appearance of $B$ by the expression
A
$\frac{-d[A]}{d t}=\frac{1}{2} \frac{d[B]}{d t}$
B
$\frac{-d[A]}{d t}=4 \frac{d[B]}{d t}$
C
$\frac{-d[A]}{d t}=\frac{1}{4} \frac{d[B]}{d t}$
D
$\frac{-d[A]}{d t}=\frac{d[B]}{d t}$
2
KCET 2017
MCQ (Single Correct Answer)
+1
-0
Which of the following statement is incorrect?
A
The rate of law for any reaction cannot be determined experimentally.
B
Complex reactions have fractional order.
C
Biomolecular reactions involved simultaneous collision between two species.
D
Molecularity is only applicable for elementary reaction
3
KCET 2017
MCQ (Single Correct Answer)
+1
-0
Which of the following statement is in accordance with the Arrhenius equations?
A
Rate of reaction does not change with increase in activation energy
B
Rate constant decreases exponentially with increase in temperature
C
Rate of a reaction increases with increases in temperature
D
Rate of a reaction increases with decreases in activation energy
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