The Question is from neet-chemistry , and it was created by the author Mr. S M HUSSAIN

Question

Which is not correct for transition metals?

Mr. S M HUSSAIN · Accepted Answer

## CORE INFORMATION
✓ **Answer**: D
## CONCEPT FRAMEWORK
	**Primary Concept**: Properties of Transition Metals
	**Related Topics**: Electronic configuration, oxidation states, complex ions, color of transition metal ions
	**Prerequisites**: Knowledge of the electronic configuration of transition metals and their typical properties.
## SOLUTION PATHWAY
**Given Information**:
	The question asks for the statement that is *not* correct about transition metals.
**Method & Steps**:
	1. Analyze each option with respect to the known properties of transition metals.
		Reasoning: We need to recall the general characteristics of transition metals.
	2. Option A: Variable oxidation states. Transition metals exhibit multiple oxidation states due to the involvement of d-electrons in bonding.
		Working: This is a correct property of transition metals.
	3. Option B: Complex formation. Transition metals readily form complexes due to their ability to accept electron pairs using their vacant d-orbitals.
		Working: This is a correct property of transition metals.
	4. Option C: Partially filled $d$-orbitals. Transition metals are defined by having partially filled d-orbitals in their elemental state or in their common oxidation states.
		Working: This is a correct property of transition metals.
	5. Option D: All the ions are colourless. Many transition metal ions are colored due to d-d transitions.
		Working: This is an incorrect statement.
**Result**:
	Option D is the incorrect statement.
**Verification**:
	The other three options are known properties of transition metals.
 ## OPTION ANALYSIS
[A] :x: Variable oxidation states is a correct property of transition metals.
[B] :x: Complex formation is a correct property of transition metals.
[C] :x: Partially filled d-orbitals is a correct property of transition metals.
[D] ✓: Many transition metal ions are colored, so this statement is incorrect.
 ## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing properties: Incorrectly thinking that all transition metal ions are colourless.
			How to avoid: Remember that the color of transition metal ions arises from d-d transitions which require partially filled d-orbitals.
	**Quick Tips**:
		1. Visualize: Recall the typical colors of common transition metal ions like copper, iron, and chromium.

Mr. S M HUSSAIN · Answer

Variable oxidation states

Mr. S M HUSSAIN · Answer

Complex formation

Mr. S M HUSSAIN · Answer

Partially filled $d$-orbitals

Mr. S M HUSSAIN · Answer

The correct Option is "All the ions are colourless"

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