GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increases the activation energy
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hastens the attainment of equilibrium
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increases the rate of reaction and increases the equilibrium concentration of products
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changes the equilibrium of a reaction so that the concentration of the product increases
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Detailed explanation-1: -A catalyst is a substance which Increases the rate of reaction and increases the equilibrium concentration of products.
Detailed explanation-2: -Adding a catalyst to a reaction at equilibrium has no effect on the position of equilibrium. It does however allow equilibrium to be reached more quickly, or established at a lower temperature, which makes reactions more profitable.
Detailed explanation-3: -A catalyst increases the rate of reaction in both forward and backward directions by providing an alternate pathway with lower activation energy. If the activation energy is reduced, more reactants can cross the energy barrier easily. So, the rate of reaction increases.
Detailed explanation-4: -A catalyst speeds up the rate at which a reaction reaches dynamic equilibrium.