Personal Tutoring Institute - SEA Lessons + CXC Lessons

25/08/2026

25/08/2026

Chemistry of Filter paper
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22/08/2026

🧪 10 Important Reactions of Aldehydes & Ketones (Part-1)

Mastering named reactions is one of the keys to success in Organic Chemistry. These 10 important reactions are frequently asked in NEET, JEE, CBSE, and other competitive examinations. The list includes Etard, Rosenmund, Stephen, Gattermann-Koch, Clemmensen, Wolff-Kishner, Aldol Condensation, Cannizzaro, Haloform, and Friedel-Crafts Alkylation reactions.

These reactions help in understanding the preparation, oxidation, reduction, and transformation of aldehydes and ketones. Knowing the reagents, products, and reaction conditions can make solving conversion-based questions much easier. Reactions like Haloform and Cannizzaro are especially important for identifying functional groups and understanding reaction mechanisms.

Save this post for quick revision and strengthen your Organic Chemistry concepts. Follow bcp100 for more Chemistry, Physics, and Biology study material.

22/08/2026

Confused about when to use had written vs. was writing? 📝 Here is a complete A4 reference guide breaking down every single tense rule and example. Tag a friend who’s learning English! 💡

22/08/2026

When to Use Present Perfect?

Share with someone who needs it and save for learning later.

I am happy to see your interactions such as share, save, comment, follow, love, like, reach, etc.

Content:
1. Life Experiences
2. Actions with Result in the Present
3. Actions that Started in the Past and Continue to the Present
4. Complete Actions with No Time Mentioned
5. Recently Happened Actions
6. With Time Expressions
> Remember!
> Quick Comparison
> Tips

🌟 Practice make perfect
✍️ Comment what do you think on this lesson.

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22/08/2026

Here is a Facebook post based on the notes you provided. I have formatted it to be engaging, educational, and visually descriptive for your audience.

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🧲 Mastering the Basics of Magnetism! 🧲

Ever wondered how electric motors work or how a simple compass points north? It all comes down to the fascinating world of magnetic fields! 🤯

Here is a quick breakdown of the fundamental concepts that power our modern world:

🔹 Magnets: Objects that attract magnetic materials like iron. They have a North (N) and South (S) pole, and their invisible force is what we call a magnetic field.

🔹 Magnetic Field: This is the "area of influence" around a magnet where its force can be felt. Think of it like a force field!

🔹 Solenoids & Electromagnets: When you coil a wire and pass electricity through it, you create a solenoid—a coil that produces a magnetic field. Add an iron core, and you get an electromagnet; a temporary magnet that can be turned on and off! 💡 This is the basis for many of the switches in our electronics.

🔹 Fleming's Rules: These are the "cheat codes" of electromagnetism!
- Left Hand Rule (The Motor Rule): Used to find the direction of force when electricity and a magnetic field interact. This is how motors spin! 🏎️
- Right Hand Rule (The Generator Rule): Used to find the direction of induced current when you move a wire through a magnetic field. This is how generators produce electricity! ⚡

Whether you are studying for an exam or just curious about how things work, understanding these principles is key to unlocking the secrets of physics.

Which rule do you find trickiest to remember? Let me know in the comments! 👇

27/05/2026

Molecular Geometry – Concept Check

What is the molecular geometry of carbon dioxide (CO₂)?

A. Bent
B. Linear
C. Trigonal pyramidal
D. Tetrahedral

Hint: According to VSEPR theory, the arrangement of electron pairs around the central atom determines the molecular shape.

Drop your answer in the comments

27/05/2026

Top 15 Triangle Shortcuts.

27/05/2026

Here is a collection of practical classroom activities involving the use of AI. I know many teachers are asking for practical ways to integrate AI into their teaching practice and those AI literacy guides and policy reports don't provide that.

In this guide, I share various learning activities you can easily adapt to your own teaching practice. The goal is to help make AI a helping force to enhance students learning through ethical and responsible use.

The guide is provided for free and link in the first comment!

27/05/2026

How does the cerebellum control balance and coordination? 🧠

The cerebellum is a part of the brain located at the back of the skull that helps coordinate movement, posture, and balance. It receives information from the muscles, joints, eyes, and inner ear, then fine-tunes motor signals so movements become smooth and accurate. The cerebellum helps with walking, hand-eye coordination, muscle timing, balance correction, and learning skilled movements like writing, dancing, or playing sports.