NEET > Chemistry Class 12 > Video: General Properties of Transition Elements
Video: General Properties of Transition Elements Video Lecture - Chemistry Class 12 - NEET
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FAQs on Video: General Properties of Transition Elements Video Lecture - Chemistry Class 12 - NEET
| 1. What are transition elements? |  |
Ans. Transition elements, also known as transition metals, are a group of elements in the periodic table that are found in the d-block. They have partially filled d orbitals and exhibit certain characteristic properties such as variable oxidation states, colored compounds, and the ability to form complex ions.
| 2. What are the general properties of transition elements? | |
Ans. Transition elements have several general properties. They are good conductors of heat and electricity, have high melting and boiling points, and possess high densities. They tend to form colored compounds due to the presence of unpaired electrons. Transition elements also exhibit variable oxidation states, allowing them to form a wide range of compounds.
| 3. How do transition elements form complex ions? | |
Ans. Transition elements have the ability to form complex ions by donating their d-orbital electrons to ligands. Ligands are molecules or ions that bond to the central metal ion through coordinate covalent bonds. This bonding results in the formation of complex ions with a central metal ion surrounded by ligands.
| 4. Why do transition elements have variable oxidation states? | |
Ans. Transition elements have variable oxidation states due to the availability of d-orbitals for electron transfer. The electrons in the d-orbitals can easily be lost or gained, allowing the transition elements to exhibit different oxidation states. This ability to change oxidation states is crucial for their involvement in various chemical reactions and the formation of complex compounds.
| 5. What is the significance of transition elements in everyday life? | |
Ans. Transition elements have significant importance in everyday life. They are commonly used as catalysts in various industrial processes, such as the Haber-Bosch process for ammonia synthesis and catalytic converters in automobiles. Transition elements are also essential for biological processes, as they play a vital role in enzymes and electron transport chains. Additionally, transition metals are used in jewelry and pigments due to their vibrant colors.
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