Question:medium
Assertion (A): Transition metals have high enthalpy of atomization.
Reason (R): This is because transition metals have low melting points.
Assertion (A): Transition metals have high enthalpy of atomization.
Reason (R): This is because transition metals have low melting points.
Show Hint
High enthalpy of atomization in transition metals results from strong metallic bonding, which also contributes to high melting and boiling points.
Updated On: Jan 13, 2026
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false
- Assertion (A) is false, but Reason (R) is true.
Show Solution
The Correct Option is C
Solution and Explanation
The high enthalpy of atomization observed in transition metals is attributable to robust metallic bonding and significant d-orbital interactions. Conversely, the general observation of high melting points in transition metals contradicts the notion that low melting points are a characteristic.
Was this answer helpful?
0
Top Questions on Some Applications of d- and f-Block Elements
- Transition metals have incomplete d-subshells either in the neutral atom or in their ions. The presence of partly filled d-orbitals in their atoms makes transition elements different from non-transition elements. With partly filled d-orbitals, these elements exhibit certain characteristic properties such as:
- Display of a variety of oxidation states
- Formation of coloured ions
- Entering into complex formation with a variety of ligands
The transition metals and their compounds also exhibit catalytic properties and paramagnetic behaviour. The transition metals are very hard and have low volatility. An examination of the E0 M2+/M values shows the varying trends:
- CBSE Class XII - 2024
- Chemistry
- Some Applications of d- and f-Block Elements
- When MnO\(_2\) is fused with KOH in air, it gives:
- CBSE Class XII - 2024
- Chemistry
- Some Applications of d- and f-Block Elements
- What is lanthanoid contraction? Actinoid contraction is greater from element to element than lanthanoid contraction. Why?
- CBSE Class XII - 2024
- Chemistry
- Some Applications of d- and f-Block Elements
- Why do transition metals have high enthalpy of atomization? Which element of the 3d-series has the lowest enthalpy of atomization?
- CBSE Class XII - 2024
- Chemistry
- Some Applications of d- and f-Block Elements
- Want to practice more? Try solving extra ecology questions todayView All Questions