Namrata and S P Singh Solutions for Chapter: Physical and Chemical Changes, Exercise 1: EXERCISE
Namrata Chemistry Solutions for Exercise - Namrata and S P Singh Solutions for Chapter: Physical and Chemical Changes, Exercise 1: EXERCISE
Attempt the free practice questions on Chapter 2: Physical and Chemical Changes, Exercise 1: EXERCISE with hints and solutions to strengthen your understanding. Concise Chemistry Middle School for Class 7 solutions are prepared by Experienced Embibe Experts.
Questions from Namrata and S P Singh Solutions for Chapter: Physical and Chemical Changes, Exercise 1: EXERCISE with Hints & Solutions
What do you observe when an iron nail is kept in tap water for a few days?

What do you observe when a spoon of sugar is heated in a pan?

What do you observe when a light match stick is brought near the mouth of the test tube containing hydrogen gas?

What do you observe when a quick lime is dissolved in water?

What do you observe when a little amount of curd is added to a bowl containing warm milk and kept for five hours?

Name a chemical change which takes place in presence of heat.

Name a chemical change which takes place in presence of light.

Name a chemical change that takes place in presence of electricity.
