The d and f-Block Elements Important Questions for NEET 2025 PDF Download

The d and f-Block Elements Important Questions for NEET: The d and f-block elements are crucial for the NEET exam as they are part of the inorganic chemistry syllabus. Understanding these elements helps in scoring well and strengthens the basics of transition metals and inner transition metals. 

The d and f-Block Elements Important Questions for NEET Overview 

The d and f-block elements are important because they help in understanding the periodic table, coordination compounds, and various reactions. These elements are frequently asked in NEET exams due to their complex nature and applications in real life. By practicing questions, students can strengthen their conceptual understanding, improve their speed and accuracy in solving numerical problems, and become familiar with the types of questions that are commonly asked in the exam. Regular practice also helps in identifying common mistakes and enables students to work on their weak areas for better performance.

What are The d and f-Block Elements?

The d-block elements, also known as transition metals, are found in groups 3 to 12 of the periodic table. They are known for their ability to form colored compounds, exhibit variable oxidation states, and act as catalysts. The f-block elements, which include the lanthanides and actinides, are located at the bottom of the periodic table. These elements are known for their complex electron configurations and unique magnetic and optical properties.

Practice Important Questions of the d and f-Block Elements for NEET

Q1 The correct order of decreasing second ionisation enthalpy of Ti(22), V(23), Cr(24) and Mn(25) is

1. Ti > V > Cr > Mn
2. Cr > Mn > V > Ti
3. V > Mn > Cr > Ti
4. Mn > Cr > Ti > V

Q2 Which is the most ionic?

1. P₂O₅
2. MnO
3. CrO₃
4. Mn₂O₇

Q3 A compound of vanadium has magnetic moment of 1.73 B.M. The electronic configuration of the vanadium ion in the compound is

1.  [Ar] 4s⁰ 3d¹
2.  [Ar] 4s¹ 3d⁰
3.  [Ar] 4s² 3d⁰
4. [Ar] 4s⁰ 3d³

Q4 Which of the following oxide is the most basic?

1. CrO
2. Cr₂O₃
3. CrO₃
4. Cr₂O₄

Q5 The element having the lowest ionisation enthalpy (IE₁) is;

1. Fe
2. Co
3. Ni
4. Cu

Q6 In the neutral or faintly alkaline medium, KMnO₄ oxidises iodide to iodate. The change in oxidation state of manganese in this reaction is from:

1. +6 to +5
2. +7 to +4
3. +6 to +4
4. +7 to +3

Q7 Which of the following pair of ions has same value of "spin-only" magnetic moment?

1. Cu⁺, Cu²⁺
2. Co³⁺, Fe²⁺
3. Ti²⁺, V²⁺
4. Sc²⁺, Zn²⁺

Q8 Statement-I: Fe³⁺ is more stable than Fe²⁺.
Statement-II: Half filled and completely filled subshells are more stable.

1. Statement I and Statement II both are correct.
2. Statement I is correct but Statement II is incorrect.
3. Statement I is incorrect but Statement II is correct.
4. Statement I and Statement II both are incorrect.

Q9 Trans-uranic elements include:

1. Only f - block
2. f-block and d block following 5f-series
3. f-block, d-block following 5f-series and p-block
4. Only 5f series elements following uranium

Q10 Zn and Cd metals do not show variable valency because;

1. they have only two electrons in the outermost subshells
2. their d-subshells are completely filled
3. their d-subshells are partially filled
4. they are relatively soft metals

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