NEET > Chemistry Class 12 > Oxidation States & Trends in Chemical Reactivity
Oxidation States & Trends in Chemical Reactivity Video Lecture - Chemistry Class 12 - NEET
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FAQs on Oxidation States & Trends in Chemical Reactivity Video Lecture - Chemistry Class 12 - NEET
| 1. What are oxidation states and why are they important in chemical reactivity? |  |
Ans. Oxidation states represent the number of electrons that an atom gains or loses when it forms a chemical compound. They are crucial in determining the reactivity of elements and compounds as they indicate the availability of electrons for chemical reactions. Higher oxidation states generally indicate more reactivity, while lower oxidation states indicate less reactivity.
| 2. How do oxidation states affect the behavior of elements in chemical reactions? | |
Ans. Oxidation states play a significant role in determining how elements will react with other substances. Elements with higher oxidation states are more likely to undergo oxidation, while elements with lower oxidation states are more likely to undergo reduction. The change in oxidation state during a reaction indicates the transfer of electrons, which drives the chemical reaction.
| 3. What are some trends in chemical reactivity based on oxidation states? | |
Ans. One trend in chemical reactivity based on oxidation states is that elements in higher oxidation states tend to be more reactive and have a greater tendency to form compounds. Another trend is that elements with multiple oxidation states can exhibit different reactivities depending on their oxidation state. Additionally, elements with low oxidation states, such as noble gases, are generally unreactive.
| 4. How do oxidation states affect the stability of compounds? | |
Ans. The stability of compounds is influenced by the oxidation states of the elements involved. Compounds with elements in their most stable oxidation states are often more stable overall. For example, transition metal compounds with elements in their highest oxidation state tend to be more stable than those with lower oxidation states. However, this trend may vary depending on the specific elements and their bonding characteristics.
| 5. Can oxidation states be predicted for elements in the periodic table? | |
Ans. Yes, oxidation states can be predicted to some extent for elements in the periodic table. The oxidation state of an element is influenced by factors such as its position in the periodic table, electron configuration, and electronegativity. By considering these factors, it is possible to make predictions about the likely oxidation states of elements. However, it is important to note that some elements can exhibit multiple oxidation states, and the actual oxidation state in a compound may also be influenced by the specific chemical environment.
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