NEET > Chemistry Class 12 > Short Tricks: D-Block Elements
Short Tricks: D-Block Elements Video Lecture - Chemistry Class 12 - NEET
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FAQs on Short Tricks: D-Block Elements Video Lecture - Chemistry Class 12 - NEET
| 1. What are d-block elements? |  |
Ans. D-block elements, also known as transition metals, are elements that belong to groups 3 to 12 in the periodic table. They are characterized by their partially filled d orbitals and exhibit a wide range of chemical properties due to their ability to form multiple oxidation states.
| 2. Why are d-block elements called transition metals? | |
Ans. D-block elements are called transition metals because they are located in the middle of the periodic table, between the highly reactive s-block elements and the relatively less reactive p-block elements. They undergo transitions in their electronic configurations as electrons fill the d orbitals, resulting in the formation of various oxidation states and the ability to form complex compounds.
| 3. What are the properties of d-block elements? | |
Ans. D-block elements possess several characteristic properties. They are generally good conductors of heat and electricity, have high melting and boiling points, and exhibit metallic luster. They often form colored compounds due to the presence of unpaired electrons in their d orbitals. Furthermore, they are known for their ability to form complex compounds and act as catalysts in chemical reactions.
| 4. What is the significance of the partially filled d orbitals in d-block elements? | |
Ans. The partially filled d orbitals in d-block elements allow them to exhibit a wide range of chemical properties. The presence of unpaired electrons in the d orbitals leads to their ability to form multiple oxidation states and participate in redox reactions. It also enables them to form complex compounds with ligands, which find applications in various fields such as medicine, industry, and catalysis.
| 5. How do d-block elements play a role in biological systems? | |
Ans. D-block elements play crucial roles in biological systems. For example, iron (Fe) is an essential component of hemoglobin, the protein responsible for oxygen transport in the blood. Copper (Cu) is involved in the functioning of enzymes, while zinc (Zn) plays a key role in DNA and protein synthesis. These elements contribute to the overall functioning and stability of biological processes.
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