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Answer by YourHope:
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Answers:
A catalyst is a substance that changes the rate of the reaction, and is not consumed in the reaction!
A solution is a uniform mixture of molecules or ions of one substance in another!
A solute is the substance dissolved in a solution!
A solution is the substance that does the dissolving in a solution!
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Answer: Option (1) is the correct answer.
Explanation:
A catalyst is defined as the substance that helps in decreasing the activation energy of a chemical reaction so that more number of reactant molecules can participate in the reaction.
During this process the catalyst doesn't get consumed in the chemical reaction.
As a result, a catalyst also helps in increasing the rate of a chemical reaction.
Thus, we can conclude that a substance that changes the rate of the reaction and is not consumed in the reaction is known as a catalyst.
