1

JEE Main 2019 (Online) 11th January Evening Slot

MCQ (Single Correct Answer)

+4

-1

The reaction 2X $$ \to $$ B is a zeroth order reaction. If the initial concentration of X is 0.2 M, the half-life is 6 h. When the initial concentration of X is 0.5 M, the time required to reach its final concentration of 0.2 M will
be:

2

JEE Main 2019 (Online) 11th January Morning Slot

MCQ (Single Correct Answer)

+4

-1

If a reaction follows the Arrhenius equation, the plot ln k vs $${1 \over {\left( {RT} \right)}}$$ gives straight line with a gradient ($$-$$ y) unit.

The energy required to active the reactant is :

The energy required to active the reactant is :

3

JEE Main 2019 (Online) 10th January Evening Slot

MCQ (Single Correct Answer)

+4

-1

For an elementary chemical reaction,

the expression for $${{d\left[ A \right]} \over {dt}}$$ is

the expression for $${{d\left[ A \right]} \over {dt}}$$ is

4

JEE Main 2019 (Online) 10th January Morning Slot

MCQ (Single Correct Answer)

+4

-1

Consider the given plots for a reaction obeying Arrhenius equation (0

Choose the correct option :

^{o}C < T < 300^{o}C) : (K and Ea are rate constant and activation energy, respectively)Choose the correct option :

Questions Asked from Chemical Kinetics and Nuclear Chemistry (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

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