$A$ catalyst is used:

  • A
    Only for increasing the velocity of the reaction
  • B
    For altering the velocity of the reaction
  • C
    Only for decreasing the velocity of the reaction
  • D
    All $(a)$,$(b)$,and $(c)$ are correct

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Which of the following is a characteristic of a catalyst?

The ability of a catalyst to accelerate the chemical reaction is known as

According to the adsorption theory of catalysis,the rate of reaction increases because:

Describe how the enthalpy of reaction remains unchanged when a catalyst is used in the reaction.

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