JEE Main Chemistry: Chemical Kinetics Practice Questions

15 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

Q1.
$Which of the following factors does not affect the rate of a chemical reaction?$
Easy
Q2.
$The activation energy of a reaction can be lowered by:$
Easy
Q3.
$For a reaction A to B, the rate of reaction doubles when the concentration of A is doubled. What is the order of the reaction?$
Easy
Q4.
$The unit of the rate constant for a zero order reaction is:$
Easy
Q5.
$For a first order reaction, the rate constant is 0.0693 per minute. What is the half-life of the reaction in minutes?$
Easy
Q6.
$F or a r e a c t i o n A + B y i e l d s p r o d u c t s, t h er a t e l a w i s g i v e nb y r a t e = k [A] [B]^{2} . I f t h eco n ce n t r a t i o n o f B i s d o u b l e d an d A i s ha l v e d, t h er a t eo f r e a c t i o n w i l l$
Medium
Q7.
$A zero order reaction has a rate constant of 0.05 M per second. If the initial concentration of the reactant is 0.5 M, what is the time taken for the reaction t$
Medium
Q8.
$For a first order reaction, the time required for 99.9 percent completion is how many times the time required for 50 percent completion?$
Medium
Q9.
$The decomposition of N2O5 in carbon tetrachloride solution follows first order kinetics. If the initial concentration is 0.46 M and after 30 minutes it becomes$
Medium
Q10.
$The rate constant of a reaction is 0.002 per second at 300 Kelvin and 0.02 per second at 310 Kelvin. Calculate the activation energy in Joules per mole.$
Medium
Q11.
$The activation energy of a reaction is 90 kJ/mol. If the temperature is increased from 300 K to 310 K, by what factor does the rate constant increase?$
Hard
Q12.
$F or a co m pl e x r e a c t i o n A + B - > C, t h er a t e l a w i s d e t er min e d t o b er a t e = k [A] [B]^{2} . I f t h eco n ce n t r a t i o n o f A i s d o u b l e d an d B i s ha l v e d, w ha t i s t h ec han g e i$
Hard
Q13.
$A first order reaction is 50 percent complete in 20 minutes. How much time is required for the reaction to be 87.5 percent complete?$
Hard
Q14.
$A catalyst lowers the activation energy of a reaction by 10 kJ/mol. By what factor does the rate constant increase at 300 K?$
Hard
Q15.
$For a reaction 2A + B -> products, the rate law is rate = k[A][B]. If the reaction is carried out in a vessel of constant volume and the initial pressure of A i$
Hard

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