Scroll to the bottom to access the NEET Chemistry questions from the chapter d- and f- Block Elements. For tips to learn the chapter, please read through this blog before starting the test.
The study of d- and f-block elements is an essential part of the Chemistry curriculum for NEET aspirants. These elements, often referred to as transition and inner transition elements, respectively, have unique properties and play a significant role in various chemical reactions and real-life applications. This guide aims to simplify these concepts and provide effective preparation tips for students.
Introduction to d- and f-Block Elements
d-Block Elements (Transition Metals):
Definition: The d-block elements, also known as transition metals, are found in groups 3 to 12 of the periodic table. They include elements such as iron, copper, and zinc.
Electronic Configuration: These elements have their outermost electrons in the d-subshell. The general electronic configuration is (n-1)d^(1-10) ns^(1-2).
Properties: d-block elements exhibit variable oxidation states, form colored compounds, and are good conductors of heat and electricity. They are also known for their catalytic properties and the ability to form various complex compounds.
f-Block Elements (Inner Transition Metals):
Definition: The f-block elements are divided into lanthanides and actinides. They are located at the bottom of the periodic table.
Electronic Configuration: The electrons fill the f-orbital, starting with cerium (for lanthanides) and thorium (for actinides). The general electronic configuration is (n-2)f^(1-14) (n-1)d^(0-1) ns^2.
Properties: These elements exhibit a phenomenon known as lanthanide contraction, which affects their chemical properties. They also have variable oxidation states and form complexes.
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Tips for Mastering d- and f-Block Elements
Conceptual Clarity: Start with understanding the basic concepts such as electronic configuration, oxidation states, and general properties of d- and f-block elements. Create flowcharts or diagrams to visualize the trends and comparisons within these elements.
Use Models and Animations: Since the properties and reactions of d- and f-block elements can be complex, visual aids like models and animations can significantly help in grasping these concepts effectively.
Solve Previous Years’ Questions: Reviewing previous NEET questions related to d- and f-block elements can provide insight into the type of questions asked and the depth of understanding required.
Regular Revision: Make it a habit to regularly revisit the concepts, properties, and reactions of these elements. Use mnemonics or flashcards to remember key facts and oxidation states.
Understand the Trends: Pay special attention to the trends in properties like atomic size, ionization energy, and magnetic properties across the d- and f-block elements.
Practice Problem-Solving: Apply the concepts by solving various numerical problems related to the d- and f-block elements, such as calculation of spin-only magnetic moment and electronic configurations.
Refer to Reliable Sources: Stick to NCERT textbooks and other recommended materials for NEET preparation, as they cover the d- and f-block elements comprehensively and are aligned with the NEET syllabus.
Peer Discussion: Engage in discussions with classmates or study groups. Explaining concepts to others can significantly enhance your own understanding and uncover any gaps in your knowledge.
Regular Testing: Conduct self-assessments or participate in mock tests focusing on the d- and f-block elements. Review your performance critically to identify areas needing improvement.
Study Real-life Applications: Understanding the practical applications of these elements can make the study more interesting and memorable. Learn about how these elements are used in catalysis, electronic devices, and other applications.
Ready to take some NEET Questions on d- and f-Block Elements?
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Which of the following is not correctly matched with their usual oxidation state? a) Fe in Fe2O3: +3 b) Cu in CuCl2: +2 c) Mn in MnO2: +4 d) Cr in K2Cr2O7: +3
The lanthanide contraction refers to: a) Increase in atomic size from La to Lu b) Decrease in ionic size from La to Lu c) Increase in electronegativity from La to Lu d) Decrease in metallic character from La to Lu
Which of the following d-block elements does not form colored ions?
a) Ti
b) V
c) Sc
d) Cu
The element that exhibits a magnetic moment of 5.92 Bohr magnetons is: a) Fe2+ b) Mn2+ c) Cr3+ d) Co2+
Which of the following ions has a d^2sp^3 (octahedral) hybridization? a) [Co(NH3)6]3+ b) [FeF6]3- c) [Zn(OH)4]2- d) [Ni(CO)4]
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