What is PEM? How is it caused?

Important Questions on Model Test Paper (Based on Chapters 1 to 8)

MEDIUM

6th CBSE

IMPORTANT

Interactive Science>Chapter 18 - Model Test Paper (Based on Chapters 1 to 8)>Model Test Paper-1 (Based on Chapters 1 to 8)>Q D

With an activity, show that burning of a candle is a chemical change.