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Which of the following characteristics of the transition metals is associated with their catalytic activity?
- a)Paramagnetic behaviour
- b)colour of hydrated ions
- c)variable oxidation states
- d)high enthalpy of atomization
Correct answer is option 'C'. Can you explain this answer?
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Which of the following characteristics of the transition metals is ass...
Variable oxidation states
One of the key characteristics of transition metals that is associated with their catalytic activity is their ability to exhibit variable oxidation states. Transition metals have partially filled d orbitals, which allows them to easily lose or gain electrons to form different oxidation states. This flexibility in oxidation states is crucial for catalytic reactions as it allows the metal to participate in redox reactions by accepting or donating electrons.
Importance in catalysis
The ability of transition metals to switch between different oxidation states is vital for catalytic activity. This feature enables them to act as catalysts by providing an alternative reaction pathway with lower activation energy. Transition metals can facilitate the breaking and formation of bonds during a chemical reaction, thereby speeding up the reaction rate without being consumed in the process.
Examples of catalytic reactions
Transition metals such as platinum, palladium, and nickel are commonly used as catalysts in various industrial processes. For instance, platinum is used in catalytic converters to convert harmful gases into less toxic substances. Palladium catalysts are employed in organic synthesis reactions, while nickel catalysts are used in hydrogenation reactions.
Conclusion
In conclusion, the variable oxidation states exhibited by transition metals play a crucial role in their catalytic activity. This characteristic allows them to participate in redox reactions, lower activation energy, and speed up chemical reactions without being consumed. As a result, transition metals are widely utilized as catalysts in numerous industrial processes.
One of the key characteristics of transition metals that is associated with their catalytic activity is their ability to exhibit variable oxidation states. Transition metals have partially filled d orbitals, which allows them to easily lose or gain electrons to form different oxidation states. This flexibility in oxidation states is crucial for catalytic reactions as it allows the metal to participate in redox reactions by accepting or donating electrons.
Importance in catalysis
The ability of transition metals to switch between different oxidation states is vital for catalytic activity. This feature enables them to act as catalysts by providing an alternative reaction pathway with lower activation energy. Transition metals can facilitate the breaking and formation of bonds during a chemical reaction, thereby speeding up the reaction rate without being consumed in the process.
Examples of catalytic reactions
Transition metals such as platinum, palladium, and nickel are commonly used as catalysts in various industrial processes. For instance, platinum is used in catalytic converters to convert harmful gases into less toxic substances. Palladium catalysts are employed in organic synthesis reactions, while nickel catalysts are used in hydrogenation reactions.
Conclusion
In conclusion, the variable oxidation states exhibited by transition metals play a crucial role in their catalytic activity. This characteristic allows them to participate in redox reactions, lower activation energy, and speed up chemical reactions without being consumed. As a result, transition metals are widely utilized as catalysts in numerous industrial processes.
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Which of the following characteristics of the transition metals is associated with their catalytic activity?a)Paramagnetic behaviourb)colour of hydrated ionsc)variable oxidation statesd)high enthalpy of atomizationCorrect answer is option 'C'. Can you explain this answer?
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