खालीलपैकी कोणते विधान उत्प्रेरकासाठी योग्य पर्याय नाही?

Explanation -

Catalysts:

• catalyst, in chemistry, is any substance that increases the rate of a reaction without itself being consumed.
• It doesn’t change the equilibrium constant, It helps in attaining equilibrium faster.
• The catalyst is replenished during the reaction between the chemical intermediates and the reactants.
• There are certain other chemical molecules that alter the activity of the catalysts.
• Catalysts are substances that can be added to a reaction to increasing the reaction rate without getting consumed in the process. They usually work by
• Lowering the energy of the transition state, thus lowering the activation energy
• Changing the mechanism of the reaction. This also changes the nature (and energy) of the transition state.
• Common types of catalysts include enzymes, acid-base catalysts, and heterogeneous (or surface) catalysts.
• Enzymes are naturally occurring catalysts that catalyze a wide range of biological events.
• Heterogeneous catalysts are catalysts that are in a different phase than the reactants.
• They can be promoters, controllers, initiators, and poisons or inhibitors.
• Promotors -
• Although these substances are not catalysts, their presence can enhance the catalytic activity of catalysts.
• The number of active sites on the surface is increased by promoters.
• Controller -
• They define the rate of a chemical reaction by controlling the temperature, pressure flow, etc of the chemical reaction.
• Initiators -
• They are the chemical substances that initiate the chemical reaction that helps to begin a chemical reaction.
• Poisons or inhibitors -
• Inhibitors (sometimes known as "negative catalysts"), on the other hand, seek to slow down the process by diminishing the catalyst's activity.
• Inhibitors can alter the catalyst's selectivity as well as the rate of the reaction by decreasing it.