Question

Important part of chapter 1 class 9 of chemistry​

Answer 1

Answer:

Hey ! All things are important but I will tell you what things you have to learn & understand better.

Kinetic energy / Diffusion

States of matter

Conversion of states of matter

and some other important questions that you will find in the textbook.

                 

                     Hope, it will help you.... if any doubts, you can ask me.