D and F block elements | 30+ PYQ | Class 12 Chemistry | CBSE Board 2024-25| Sourabh Raina

Discussing the short answer type questions related to electronic configurations of copper 2+, zinc, and other elements.

Explaining the complete fill of d orbitals in Zn2+ and crystal field splitting. Transition mismatch leads to complex formation in Cu2+ due to one unpaired electron.

Focus on the oxidation state question regarding lanthanoid elements such as the +7 state of X4 F7 6s 2.

Discussing the reason for actinoids having higher oxidation states compared to lanthanoids due to the narrow energy gap.

Identifying the element that gives a +4 oxidation state according to the 2014 question.

Determining the electronic configuration of cobalt and its change upon removal of electrons.

Looking into the electronic configuration of atomic number 27 (Cobalt, Co).

Explaining the nature of Mn2O3 as a basic compound and Mn2O7 as an acidic one.

Comparing the stability of copper ions +1 and +2 in aqueous solutions based on their reduction potentials.

Discussing transition metals and their properties related to unpaired electrons and bond formation, leading to strong metallic bonds.

Balancing chemical equations involving manganese compounds in acidic medium, showcasing the usage of strong oxidants and the resulting products.

Exploring the exhibition state of transition metals, focusing on their orbitals and involvement in bond formation.

Understanding the catalytic behavior of transition metals and their role in stabilizing intermediate compounds.

Examining the metallic strength based on the number of unpaired electrons and their impact on properties like melting and boiling points.

Discussing the coloration of ions in aqueous solutions and the role of partially filled d orbitals in exhibiting color.

Explaining reduction and oxidation processes in metallic elements and the conversion between different oxidation states.

Summary of the content related to the topic of wear age.

Explains colorless and y among the topics discussed.

Discussion on electronic configuration and related concepts.

Explanation of unpaired electrons leading to colored substances.

Discussion on the reaction involving mach more resistant denoting fe2.

Explanation of the method of representing oxidation involving ferrous salts by the dy chromate ion 219.

Explains the completion process including mno2.

Discussing the transition series including 3d, 4d, and 5d series and their characteristics.

Exploring metallic bonding and its relation to unpaired electrons in metals.

Understanding the VSEPR theory and its application to metals in the second and third series.

Examining the electronic configurations of metals in the 4d and 5d series and the impact of nuclear charge.

Discussing the enthalpy of atomization in the context of metallic bonding and its impact on bonding strength.

Highlighting the exceptional positive nature of copper and its high enthalpy of atomization compared to other elements.

Exploring the complex nature of actinoids with high oxidation states and their radioactive properties.

Examining the formation of manganese oxide and its oxidation process in acidic medium.

Discussing the redox potential and oxidation states with a focus on electron exchange and energy levels.

Discussion on balancing the hydrogen atoms in the chemical equation by adding electrons to achieve a balanced charge.

Explanation of the oxidation of H2S and balancing the charges by adding electrons to both sides of the equation.

Demonstration of adding electrons to balance the charges in the formation of dichromate ion (Cr2O7^2-).

Analyzing the reaction and disproportionation process of Cr3+ ions to form Cr2O7^2-.

Discussion on the behavior of magnesium ions in acidic medium and the formation of permanganate ions.

Explanation of the oxidation and reduction processes, along with the changes in oxidation numbers.

Understanding the disproportionation of dysprosium magnesium ions in an acidic medium.