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Differential and integral forms of zero and first-order reactions, their characteristics and half-lives Mock Test for JEE

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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}
Q9ChemistryUnit 8: Chemical Kinetics
In a zero order reaction half life is 100 sec. After how much time 78 fraction of reactant will be reacted?
Q10ChemistryUnit 8: Chemical Kinetics
The rate of the first order reaction is 0.69×10−20.69 \times 10^{-2} mol L−1L^{-1} min −1^{-1} and the initial concentration is 0.2molL−10.2 m o l L^{-1}. The half life period is:
Q11ChemistryUnit 8: Chemical Kinetics
At low pressure, the fraction of the surface covered follows:
Q12ChemistryUnit 8: Chemical Kinetics
Which of the following statements is not true?
Q13ChemistryUnit 8: Chemical Kinetics
80%80 \% of a first order reaction was completed in 70 min. How much it will take for 90%90 \% completion of a reaction?
Q14ChemistryUnit 8: Chemical Kinetics
A reaction of first - order completed 90%90 \% in 90 minutes, hence, it is completed 50%50 \% in approximately:
Q15ChemistryUnit 8: Chemical Kinetics
A tangent drawn on the curve obtained by plotting concentration of product mole L−1L^{-1} ) of the first-order reaction vs time (min) at the point corresponding to time minute takes an angle to 30∘30^{\circ} with concentration axis Hence the rate of formations of product after 20 minutes will be:

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