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NEET Exam > Chemistry Class 11 > Flashcard: d-block Elements
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129 videos|234 docs|88 tests
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FAQs on Flashcard: d-block Elements Video Lecture - Chemistry Class 11 - NEET
| 1. What are d-block elements? |  |
Ans. D-block elements are a group of chemical elements that are located in the d-block of the periodic table. They are also known as transition metals and consist of elements from group 3 to group 12. These elements have partially filled d-orbitals and exhibit characteristic properties like variable oxidation states, formation of colored compounds, and high melting and boiling points.
| 2. How many d-block elements are there? | |
Ans. There are a total of 40 d-block elements in the periodic table. These elements include transition metals such as iron, copper, and zinc, as well as other elements like scandium, titanium, and zinc. They are positioned between the s-block and p-block elements in the periodic table.
| 3. What are the properties of d-block elements? | |
Ans. D-block elements possess several unique properties due to their partially filled d-orbitals. Some of the key properties include the ability to exhibit multiple oxidation states, formation of colored compounds, high melting and boiling points, good conductivity of heat and electricity, and the ability to form complex compounds with ligands.
| 4. How do d-block elements form complex compounds? | |
Ans. D-block elements have the ability to form complex compounds by coordinating with ligands. Ligands are atoms, ions, or molecules that can donate a pair of electrons to the central metal ion, forming coordinate bonds. The partially filled d-orbitals of the d-block elements allow them to accept these electron pairs, resulting in the formation of stable complex compounds.
| 5. What are some applications of d-block elements? | |
Ans. D-block elements find numerous applications in various fields. For example, transition metals like iron and copper are widely used in the manufacturing of electrical wires and machinery due to their excellent conductivity. Other d-block elements like platinum and palladium are used as catalysts in chemical reactions. Additionally, transition metal compounds are employed in the production of pigments, jewelry, and even in medicine for their therapeutic properties.
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