Class 9 Chemistry | New Book Chapter 1 Lecture 12 | Exercise Constructed Response Questions Solved ✅

Описание: Complete Lecture Series:
Class 9 Chemistry | Complete New Book (Chapters 1-13) | Punjab Board 🔥📘
   • Class 9 Chemistry | Complete New Book (Cha...  

Welcome to Lecture 12 of Class 9 Chemistry! In this session, we will solve the constructed response questions from Chapter 1 of the new Punjab Board Chemistry book. These questions are frequently asked in exams and help students develop conceptual clarity and analytical skills.

📘 Questions Covered in This Lecture:
🔹 How does a supercritical state look like?
🔹 In what way is plasma created in a fluorescent tube?
🔹 Most of the molecules we study in biochemistry are organic in nature. What is the difference between organic chemistry and biochemistry?
🔹 What is the reason for the brilliance shown by a diamond? Can it be improved?
🔹 Explain the dissolution of sodium chloride (NaCl) in water.
🔹 Why do different compounds have different solubilities in water at a particular temperature?
🔹 Why can NaCl not be crystallized from water like KNO₃?
🔹 Why is graphite slippery to touch? Which property of graphite enables it to be used as a lubricant?

This lecture provides step-by-step, well-explained answers to help students prepare for exam-style questions and develop strong problem-solving skills.

This video is designed for Class 9 students under the Punjab Board system, including:

Board of Intermediate and Secondary Education, Lahore
Board of Intermediate and Secondary Education, Faisalabad
Board of Intermediate and Secondary Education, Multan
Board of Intermediate and Secondary Education, Rawalpindi
Board of Intermediate and Secondary Education, Sargodha
Board of Intermediate and Secondary Education, Dera Ghazi Khan
Board of Intermediate and Secondary Education, Bahawalpur
Board of Intermediate and Secondary Education, Gujranwala
Board of Intermediate and Secondary Education, Sahiwal
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