AIIMS2010Chemistry-Chemical Kinetics
AIIMS 2010 Chemistry Order of reaction MCQ Question
Type: MCQ-numerical-Medium-Class 12
For a reaction X → Y, the graph of the product concentration (x) versus time (t) came out to be a straight line passing through the origin. Hence the graph of -d[X]/dt and time would be
A
straight line with a negative slope and an intercept on y-axis
B
straight line with a positive slope and an intercept on y-axis
C
a straight line parallel to x-axis
D
a hyperbola.
Correct Answer
Option C
Detailed Explanation
If product concentration is x. For a zero order reaction x = kt. Thus graph would be a straight line passing through origin. So the given information is for zero order reaction. For a zero order reaction, rate of the reaction is constant. Thus, plot of rate vs time, i.e., -d[X] / dt vs time will be a straight line parallel to x-axis.
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