LABORATORY REVIEW
ENZYME CATALYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A catalyst the same phase as the reactants
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A catalyst a different phase than the reactants
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A catalyst in one physical state
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A catalyst in two different physical states
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Detailed explanation-1: -As we have seen in the example of formation of Sulphur trioxide, the reactants, the products and the catalyst should all be in the same phase. In that case the catalysis is said to be homogeneous.
Detailed explanation-2: -Homogeneous catalysts are those which exist in the same phase (gas or liquid ) as the reactants, while heterogeneous catalysts are not in the same phase as the reactants.
Detailed explanation-3: -In a heterogeneous reaction, the catalyst is in a different phase from the reactants. In a homogeneous reaction, the catalyst is in the same phase as the reactants.
Detailed explanation-4: -A heterogeneous catalyst is a catalyst that is present in a different phase (usually a solid) than the reactants. Such catalysts generally function by furnishing an active surface upon which a reaction can occur.
Detailed explanation-5: -If the reactant and the products are in same phase, then the catalyst of the reaction is called a homogenous catalyst.