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According to the collision theory of che...

According to the collision theory of chemical reactions

A

A chemical reaction occurs with every molecular collision

B

Rate is directly proportional to the number of collisions per second

C

Reactions in the gas phase are always of zero order

D

Reaction rates are of the order of molecular speeds

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The correct Answer is:
B
The increase in collision frequency brings in an increase in effective collisions and thus rate of reaction increases .
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ERRORLESS-CHEMICAL KINETICS-NCERT BASED QUESTIONS (Collision Theory, Energy of Activation and Arrhenius Equation)
  1. According to the collision theory of chemical reactions

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  2. Activation energy of any reaction depends on

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  3. An endothermic reaction, Ararr B have an activation energy 15 kcal//mo...

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  4. For a reaction, activation energy (Ea ) =0 and rate constant, k = 1.5 ...

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  5. The activation energy of a reaction is zero. The rate constant of this...

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  6. The rate constant is given by the equation k = P.Ze^(-E//RT). Which fa...

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  7. Chemical reactions with very high E(a) values are generally

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  8. In the given graph the activation energy , E(a) for the reverse reacti...

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  9. If the activation enery for the forward reaction is 150 "kJ mol"^(-1) ...

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  10. The rate constant (K') of one reaction is double of the rate constant ...

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  11. The role of a catalyst is to change

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  12. In the presence of a catalyst, the heat evolved or absorbed during the...

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  13. For a reversible reaction where the forward reaction is exotherminc, w...

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  14. A large increase in the rate of a reaction for a rise in temperature i...

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  15. On increasing the temperature, the rate of the reaction increases beca...

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  16. The minimum energy a molecule should possess in order to enter into a ...

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  17. Activation energy is

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  18. The reason for almost doubling the rate of reaction on increasing the ...

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  19. The activation energy for a reaction at the temperature T K was found ...

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  20. Collision theory is applicable to

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