NEET Order, Molecularity and Mechanism Practice Questions With Solutions

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NEET Chemistry Order, Molecularity and Mechanism Practice Questions

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Question 1.

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For a certain reaction, the rate = \(k[A]^2[B],\) when the initial concentration of A is tripled keeping the concentration of B constant, the initial rate would be:

Question 2.

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The correct options for the rate law that corresponds to overall first order reaction is:

Question 3.

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The given graph is a representation of the kinetics of a reaction.

The y and x axes for zero and first-order reactions, respectively are:

Question 4.

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The half-life for a zero-order reaction having 0.02 M initial concentration of reactant is 100 s. The rate constant (in mol L–1 s–1) for the reaction is:

Question 5.

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When the initial concentration of the reactant is doubled,
the half-life period of a zero-order reaction:

Question 6.

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When the initial concentration of a reactant is doubled in a reaction, its half-life period is not affected. The order of the reaction will be:

Question 7.

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The rate Constant of reaction A → B is 0.6 × 10–3\(\mathrm{molL}^{-1} \mathrm{~S}^{-1}\). If the Concentration of A is 5M, then the concentration of B after 20 min is:

Question 8.

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For the reaction, 
N2O5g→2NO2g+12O2g
the value of rate of disappearance of N2O5 is given as 6.25 x 10-3mol L-1s-1.The rate of formation of NO2 and O2 is given respectively as:

Question 9.

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The rate of reaction between two reactants A and B decreases by a factor of 4 if the concentration of reactant B is doubled. The order of this reaction with respect to reactant B is:

Question 10.

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If the rate of the reaction is equal to the rate constant, the order of the reaction is:
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Question 1.

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2A→B+C; It would be a zero-order reaction when:

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