Скачать или смотреть Class 12 Chemistry 🔥| d & f Block Elements | Coloured Compounds | Full Concept + Tricks | NEET | JEE

Class 12 Chemistry 🔥| d & f Block Elements | Coloured Compounds | Full Concept + Tricks | NEET | JEE


Welcome to Lets Learn With Rajnish Sir!
In this 20-minute powerful session, we will deeply understand one of the most important topics of Class 12 Chemistry – “Colour Property” of d and f Block Elements.
This topic is not only conceptually beautiful but also highly scoring in Board Exams.

In this video, Rajnish Sir has explained the color property of transition and inner transition metals in a very easy and conceptual manner, covering all important board-level questions, PYQs, and tricks to remember key points.

If you watch this video till the end, you’ll never forget how and why transition metals are coloured. 🌈


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⏱️ Video Timeline:

00:00 – Introduction | Importance of Colour Property in d & f Block
01:10 – Meaning of Colour in Transition Metal Compounds
03:20 – Explanation of d–d Transition (Crystal Field Theory Concept)
06:30 – Factors Affecting Colour in Transition Metals
09:45 – Colourless Compounds Concept (When and Why They Occur)
12:20 – Colour in f–Block Elements (Lanthanides & Actinides)
14:40 – Tricks to Remember Coloured Ions (Mn²⁺, Fe³⁺, Cr³⁺, Cu²⁺, Ni²⁺ etc.)
17:00 – Important Board Questions & Previous Year Problems Solved
19:00 – Final Tips & Summary for Board Exams 2025
20:00 – Outro + Motivation from Rajnish Sir 💪


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🌟 Key Concepts Explained by Rajnish Sir:

Reason behind colour in transition metal compounds

Role of unpaired electrons and d–d transition

Why some compounds are colourless

Colour differences between d-block and f-block elements

Board-based important questions with detailed explanations

Smart tricks to remember coloured ions easily

Concept links to coordination compounds (bonus insight!)



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🧠 Board Exam Focus (CBSE + State Boards 2025):

✅ 100% NCERT-based
✅ Includes most expected Board Questions
✅ Concept + Questions = Full Marks Strategy
✅ Quick Revision Tips at the End


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📚 Useful for:

Class 12 Students (CBSE / ICSE / State Boards)

NEET & JEE Aspirants (for conceptual clarity)

Revision before Pre-Boards & Final Exams

💬 About the Educator:

Rajnish Sir is known for his clear, conceptual, and exam-focused teaching style.
He makes even the toughest Chemistry topics easy with real-life logic, examples, and memory tricks.
Join the Lets Learn With Rajnish Sir family and strengthen your Chemistry concepts every day!


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📢 Connect With Us:

📸 Instagram – @letslearnwithrajnishsir
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Facebook --- rajnishkumar.gond.39
lets learn with rajnish sir

📘 Telegram – Let’s Learn With Rajnish Sir
(For Notes & Updates)

What's app --- +91-9450631338
+91-8726850111





📢 Don’t Forget To:

👍 Like this video if it helped you
💬 Comment your doubts below – Rajnish Sir personally replies!
📲 Share this video with your friends preparing for Class 12 Boards
🔔 Subscribe to Lets Learn With Rajnish Sir for more amazing Chemistry lessons

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💬 “Watch till 20:00 for complete Colour Concept & Board Tricks by Rajnish Sir — Don’t skip! 🎯”


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