31 Year NEET Previous Year Questions: Chemical Kinetics - NEET MCQ

For an endothermic reaction, energy of activation is E_a and enthalpy of reaction of ΔH (both of these in kJ/mol). Minimum value of E_a will be. [2010]

During the kinetic study of the reaction, 2A + B → C + D, following results were obtained: 

Based on the above data which one of the following is correct? [2010]

The rate of the reaction is given by the rate equation rate = k [NO]₂ [Cl₂]     [2010] The value of the rate constant can be increased by:

Which one of the following statements for the order of a reaction is incorrect ? [2011]

For the reaction , the equilibrium constant is K₁. The equilibrium constant is K₂ for the reaction [2011] .What is K for the reaction

The rate of the reaction can be written in three ways :

The relationship between k and k' and between k and k"are :

[2011 M]

The unit of rate constant for a zero order reaction is [2011 M]

In a reaction, A + B → Product, rate is doubled when the concentration of B is doubled, and rate increases by a factor of 8 when the concentrations of both the reactants (A and B) are doubled rate, law for the reaction can be written as : [2012]

In a zero-order reaction for every 10° rise of temperature, the rate is doubled. If the temperature is increased from 10°C to 100°C, the rate of the reaction will become : [2012]

Activation energy (E_a) and rate constants (k₁ and k₂) of a chemical reaction at two different temperatures (T₁ and T₂) are related by : [2012 M]

What is the activation energy for a reaction if its rate doubles when the temperature is raised from 20°C to 35°C? (R = 8.314 J mol^–1 K^–1) [NEET 2013]

A reaction having equal energies of activation for forward and reverse reaction has : [NEET 2013]

A reaction is 50% completed in 2 hours and 75% completed in 4 hours. The order of reaction is     [NEET Kar. 2013]

For a reaction between A and B the order with respect to A is 2 and the order with respect to B is 3. The concentrations of both A and B are doubled, the rate will increase by a factor of: [NEET Kar. 2013]

For an exothermic reaction, the energy of activation of the reactants is [1994]

A substance 'A' decomposes by a first or der reaction starting initially with [A] = 2.00 m and after 200 min, [A] becomes 0.15 m. For this reaction t_1/2 is [1995]

In a reaction, A + B → Product, rate is doubled when the concentration of B is doubled, and rate increases by a factor of 8 when the concentrations of both the reactants (A and B) are doubled, rate law for the reaction can be written as 

Activation energy of a chemical reaction can be determined by [1998]

In the following reaction , how is the rate of appearance of the underlined product related to the rate of disappearance of the underlined reactant ? [2000]

When a biochemical reaction is carried out in laboratory in the absence of enzyme then rate of reaction obtained is 10^–6 times, then activation energy of reaction in the presence of enzyme is

For the reaction rate and rate constant are 1.02 × 10^–4 mol lit^–1 sec^–1 and 3.4 × 10^–5 sec^–1 respectively then concentration of N₂O₅ at that time will be [2001]

, rate of reaction    is equal to

The temperature dependence of rate constant (k) of a chemical reaction is written in terms of Arrhenius equation, . Activation energy of the reaction can be calculated by plotting [2003]

If the rate of the reaction is equal to the rate constant, the order of the reaction is [2003]

For the reaction 2A + B → 3C + D which of the following does not express the reaction rate ? [2006]

The reaction of hydrogenandiodine monochloride is given as: [2007]

The reaction is of first order with respect to H_2(g) and ICI_(g), following mechanisms were proposed.
Mechanism A:

Mechanism B:

Which of the above mechanism(s) can be consistent with the given information about the reaction?

The rate constants k₁ and k₂ for two different reactions are 10¹⁶ . e^–2000/T and 10¹⁵ . e^–1000/T, respectively. The temperature at which k₁ = k₂ is :