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A reaction involving two different reactants can never be

Unimolecular reaction
First order reaction
Second order reaction
Bimolecular reaction
Additional Questions

Which of the following statements for order of reaction is not correct?

Answer

The activation energy of a reaction at a given temperature is found to be 2.303 RT J mol–1. The ratio of rate constant to the Arrhenius factor is

Answer

The following mechanism has been proposed for the reaction of NO and Br2 to form NOBr

NO(g) + Br2(g) ⇌ NOBr2(g)

NOBr2(g) + NO(g) → 2NOBr(g)

If the second step is rate determining step, the order of the reaction with respect to NO(g) is

Answer

The following data were obtained during the first order decomposition of 2A(g) → B(g) + C(s) at a constant volume and at a particular temperature.

Sr. No.TimeTotal pressure in Pascal
1.At the end of 10 min300
2.After completion200

The rate constant in min–1 is

Answer

Consider an endothermic reaction, X → Y with activation energies Eb and Ef respectively for the backward and forward reactions, respectively. In general,

Answer

Under the same reaction conditions, initial concentration of 1.386 mol dm–3 of a substance becomes half in 40 seconds and 20 seconds through first order and zero order kinetics respectively. Ratio $\left(\dfrac{k_1}{k_0}\right)$ of the rate constants for first order (k1) and zero order (k0) of the reaction is

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The rate of a chemical reaction doubles for every 10°C rise of temperature. If the temperature is raised by 50°C, the rate of the reaction increases by about

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In the hydrolysis of an organic chloride in presence of large excess of water,

RCl + H2O → ROH + HCl

Answer

For the reaction A + B → products, it is observed that
(i) On doubling the concentration of A only, the rate of reaction is also doubled.
(ii) On doubling the initial concentration of both A and B, there is change by a factor of 8 in the rate of reaction.
The rate of reaction is given by

Answer

Which of these changes with time for a first–order reaction?
A. Rate of reaction
B. Rate constant
C. Half–life

Answer
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