1
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Instantaneous rate of a reaction is $$ - {1 \over 2}{{d[x]} \over {dt}} = - {{d[y]} \over {dt}} = {1 \over 2}{{d[z]} \over {dt}}$$, identify the reaction.

A
$$x - 2y \to 2z$$
B
$$2x + y \to 2z$$
C
$$2z + y \to 2x$$
D
$$2x - 2y \to z$$
2
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Half life for a first order reaction is 6.93 hour. What is the time required for 80% completion of the reaction?

A
12 hours
B
18 hours
C
6 hours
D
16 hours
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