JEE Main Chemistry Chemical Kinetics Online Test, Jee Main MCQ

A rapid reaction is distinguished by

In the following graphical representation for the reaction A → B there are two types of regions

The reaction of ozone with oxygen atom in the presence of chlorine atom can occur by the two – step process shown here with the rate constant for each step

O₃(g) + Cl(g) → O₂(g) + ClO(g), K₁ = 5.2 × 10⁹ L mol^–1 s^–1

ClO(g) + O(g) → O₂(g) + Cl(g), K₂ = 2.6 × 10¹⁰ L mol^–1 s^–1

Which of the values below is the closest to the rate constant of the overall net reaction, given by the equation

O₃(g) + O(g) → 2O₂(g)?

The inversion of cane sugar into glucose and fructose according to the equation

C₁₂H₂₂O₁₁ + H₂O → C₆H₁₂O₆ + C₆H₁₂O₆

Is an example of

A reaction follows the given concentration–time graph. The rate for this reaction at 20 s will be

The rate law for the reaction

RCl + NaOH → ROH + NaCl is given by Rate = k [RCl]. The rate of this reaction

The rate of the reaction, A + B₂ → AB + B is directly proportional to the concentration of A and independent of concentration of B₂, hence, rate law is

For a gaseous reaction, the units of rate of reaction are

For zero^th order reaction

For the decomposition of N₂O₅ at a particular temperature, according to the equations

2N₂O₅ → 4NO₂ + O₂

N₂O₅ → 2NO₂ + 1/2 O₂

The activation energies are E₁ and E₂ respectively then

Which represents first order reaction out of I, II and III?

Units of rate constant of first and zero order reactions in terms of molarity M unit are respectively

For the above reaction, if concentration of A is changed from 0.1 M to 0.2 M, rate becomes

For a second order reaction, 2A → Product, a straight line is obtained if we plot

The rate of a chemical reaction doubles for every 10°C rise in temperature. If the temperature is increased by 60°C, the rate of reaction increases by

If in the fermentation of sugar in an enzymatic solution that is initially 0.12 M the concentration of the sugar is reduced to 0.06 M in 10 h and to 0.03 M in 20 h, then order of the reaction is

If a certain reaction is first order with respect to A, second order with respect to B and zero order with respect to C then what is the order of reaction?

For a reaction A + B → C + D, if the concentration of A is doubled without altering the concentration of B, the rate gets doubled. If the concentration of B is increased by nine times without altering the concentration of A, the rate gets tripled. The order of the reaction is

For the reaction A → B, the rate expression is r = k[A]ⁿ. When the concentration of A is doubled, the rate of reaction is quadrupled. The Value of n is

In the reaction, P + Q → R + S the time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The concentration of Q varies with reaction time as shown in the figure. The overall order of the reaction is

By increase in temperature by 10 K, the rate of reaction becomes double. How many times the rate of reaction will be if the temperature is increased from 303 K to 353 K?

Which of the following graphs represents exothermic reaction?

For a reaction between gaseous compounds,

2A + B  → C + D

The reaction rate = k[A][B]. If the volume of the container is made 1/4 of the initial, then what will be the rate of reaction as compared to the initial rate?

The rate constant of a reaction is given by k = 2.1 × 10¹⁰ exp (– 2700 RT). It means that

Which of the reactions represented in these diagrams will show the greatest increase in rate for a given increase in temperature?

For a single step reaction,

A + 2B  → Products, the molecularity is

Pieces of wood burn faster than a log of wood of the same mass because

Given the following diagram for the reaction

A + B → C + D

The enthalpy change and activation energy for the reverse reaction, C + D → A + B are respectively

follows first order reaction. (A) → Product Concentration of A, changes from 0.1 M to 0.025 M in 40 min. Find the rate of reaction of A when concentration of A is 0.01 M

For a given reaction.

2H₂O₂ → 2H₂O + O₂

Graph between log [H₂O₂] and time t is of the type Thus, rate law is