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Differential and integral forms of zero and first-order reactions, their characteristics and half-lives Previous Year Questions for JEE

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Goodmarks offers 19+ JEE-style PYQs for Differential and integral forms of zero and first-order reactions, their characteristics and half-lives with detailed solutions. While official past papers rotate yearly, our bank covers the same concepts, difficulty, and question formats tested in JEE Chemistry.

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Part of Chemical Kinetics in JEE Main Chemistry.

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Q1ChemistryUnit 8: Chemical Kinetics
90%90 \% of the first-order reaction is completed in 70 minutes. The velocity constant of the reaction is:
Q2ChemistryUnit 8: Chemical Kinetics
Which of the following statement is incorrect about the reaction?
Q3ChemistryUnit 8: Chemical Kinetics
For a general reaction X→Y,\boldsymbol{X} \rightarrow \boldsymbol{Y}, the plot of conc. of X\boldsymbol{X} vs time is given in the figure. What is the order of the reaction and what are the units of rate constant?
Q4ChemistryUnit 8: Chemical Kinetics
The units of rate of reaction and the rate constant are identical for a
Q5ChemistryUnit 8: Chemical Kinetics
Assertion For the reaction RCl+NaOH(aq)→R C l+N a O H(a q) \rightarrow ROH ++ Na ClC l, the rate of reaction is reduced to half on reducing the concentration of RCl to half. Reason The rate of the reaction is represented by k[RCl], i.e., it is a first order reaction.
Q6ChemistryUnit 8: Chemical Kinetics
In a first order reaction with time the concentration of the reactant decreases:
Q7ChemistryUnit 8: Chemical Kinetics
The rate constant of a first order reaction is 0.0693 min−1^{-1} Time (in minutes) required for reducing an initial concentration of 20 mol lit−1l i t^{-1} to 2.5 mol lit−1l i t^{-1} is :
Q8ChemistryUnit 8: Chemical Kinetics
For a reaction A(g)→B(g)+C(g),\boldsymbol{A}_{(g)} \rightarrow \boldsymbol{B}_{(g)}+\boldsymbol{C}_{(g)}, the rate constant for the reaction is 3x3 x 10−3M−10^{-3} M^{-} min −1.^{-1} . At what concentration of AA will at the rate of reaction be 2x2 x 10−3Mmin10^{-3} \mathrm{M} \mathrm{min}

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Our bank includes exam-style MCQs aligned with JEE Main Chemistry syllabus for Differential and integral forms of zero and first-order reactions, their characteristics and half-lives, covering the same topics as previous year papers.

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