NEET Practice Questions (MCQs) with Answers & Solutions

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The minimum amount of energy required for the reacting molecules to undergo reaction is called :

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threshold energy.

Increase in the concentration of the reactants leads to the change in

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Collision frequency

Energy of activation of an exothermic reaction is

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Positive Activation energy is always Positive

The chemical reactions in which reactants require high amount of activation energy are generally ................

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Slow

The rate of reaction increases with increase of temperature because ...

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an increase in the number of activated molecules.

The activation energy of reaction is equal to

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Threshold Energy – Energy of the reactants

Collision theory is most satisfactory for __________ reaction.

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Bimolecular

If $E_f$ and $E_r$ are the activation energies of the forward and reverse reactions and the reaction is known to be exothermic then

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$ E_f \lt E_r $

Which of the following does not affect the rate of reaction ?

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OH of reaction

For an endothermic reaction, OH represents the enthalpy of reaction. The minimum value for the energy of activation will be ...

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more than OH

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