This PDF is a comprehensive MCQ-based practice exercise for NEET Chemistry covering the chapter d- and f-Block Elements. It is designed to test conceptual understanding, numerical accuracy, and exam readiness through one-correct-option questions. The content strictly follows the NCERT syllabus and includes regular practice questions, revision-marked questions, and previous-year competitive exam problems.
I am writing about this exercise PDF because many NEET aspirants practise questions without fully understanding what areas are being tested. This article clearly explains the structure of the exercise and the exact topics covered, so students can revise smartly, identify weak areas, and use this PDF more effectively during preparation.
Overall Structure of the Exercise PDF
The PDF is organised into multiple sections, each focusing on a specific property or behaviour of d- and f-block elements. All questions are objective in nature and are meant for practice after completing theory. Several questions are specially marked for revision, indicating their importance for exams like NEET, AIPMT, AIIMS, and JEE.
Section A: Electronic Configuration and Physical Properties
This section tests the foundation of d-block chemistry. Questions focus on general electronic configurations of transition elements, exceptions like chromium and copper, and configurations of zinc, cadmium, and mercury.
Students practise questions on atomic and ionic radii, metallic radius trends, density variations, and melting and boiling points across the 3d series. The reasons behind lower melting points of certain elements and the effect of filled d-orbitals are repeatedly tested.
Section B: Ionisation Enthalpy, Oxidation States, and Reactivity
This section focuses on variable oxidation states and their stability. Questions test trends in first ionisation enthalpy, standard electrode potentials, and factors affecting oxidation state stability in aqueous solutions.
The role of ligand nature, hydration enthalpy, and electronic configuration in stabilising high or low oxidation states is a major focus. Many MCQs test identifying the element showing maximum oxidation state or the most stable oxidation form.
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Section C: Magnetic Properties and Colour
This section tests paramagnetism, diamagnetism, and magnetic moment calculations. Questions are based on the number of unpaired electrons and spin-only magnetic moment values.
Colour of transition metal ions is tested through questions on d–d transitions and electronic configuration. The PDF includes MCQs that ask students to identify colourless and coloured ions in aqueous solutions.
Section D: Catalytic Properties, Alloys, and Interstitial Compounds
Here, the exercise focuses on why transition metals act as catalysts. Questions test understanding of variable oxidation states, unfilled d-orbitals, and surface adsorption.
Formation of interstitial compounds, their hardness, conductivity, and alloy formation are tested through direct conceptual questions. Common alloys such as brass and german silver are also included.
Section E: Important Compounds of d-Block Elements
This is one of the most scoring sections. Questions cover potassium dichromate and potassium permanganate in detail, including their preparation, colour changes, oxidising behaviour in acidic, neutral, and alkaline media, and laboratory reactions.
Students practise questions on Mohr’s salt, chromate–dichromate interconversion, thermal decomposition, and reactions with sulphur dioxide, hydrogen peroxide, and iodide ions.
Section F: Lanthanoids and Actinoids
This section tests f-block concepts such as electronic configuration, lanthanide contraction, oxidation states, basicity trends, magnetic behaviour, and separation methods.
Questions compare lanthanoids and actinoids, test radioactive nature and variable valency of actinoids, and focus on reasons behind similarities between elements like zirconium and hafnium.
Previous-Year Exam Questions
The PDF includes a large number of previous-year questions from NEET, AIPMT, AIIMS, JEE Main, and AIEEE. These questions are grouped separately, helping students understand how theory-based concepts are asked directly in competitive exams.
Answer Keys and Self-Assessment
The final part of the PDF provides answer keys for all exercises. This allows students to quickly evaluate performance, identify weak topics, and revise important areas without external help.
