← All lessons
🔬 Science - Class 9
EN
नेपाली
Home
›
Class 9
›
Science
›
Unit 15: Chemical Reaction
›
Chemical Equations
Unit 15 · Chemical Reaction
Chemical Equations
Science
Subject
8 min
Estimated read
📖
Note
🔬
Activity
⭐
Points to Remember
✏️
Practice Questions
🧪
Practice Test
🖥️
Presentation
Question 1 of 12
1
Which of these is a chemical reaction?
Ice melting into water
Salt dissolving in water
Iron rusting
A glass tumbler breaking