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Question
A catalyst is used
A catalyst is used
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Solution
The correct option is B For altering the rate of a reaction
A catalyst is a substance that can alter the rate of reaction without itself undergoing any permanent chemical change. It provides an alternative route for the reaction with a lower or higher activation energy.
They can be classified into two categories.
1. Positive catalyst (increases the rate of the reaction)
2. Negative catalyst (decreases the rate of the reaction)
It does not changes the spontaneity of the reaction. Also, it does not affect the chemical equilibrium.
A catalyst is a substance that can alter the rate of reaction without itself undergoing any permanent chemical change. It provides an alternative route for the reaction with a lower or higher activation energy.
They can be classified into two categories.
1. Positive catalyst (increases the rate of the reaction)
2. Negative catalyst (decreases the rate of the reaction)
It does not changes the spontaneity of the reaction. Also, it does not affect the chemical equilibrium.
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