S K Jain and Shailesh K Jain Solutions for Chapter: Physical and Chemical Changes, Exercise 2: Oral Questions

Author:S K Jain & Shailesh K Jain

S K Jain Science Solutions for Exercise - S K Jain and Shailesh K Jain Solutions for Chapter: Physical and Chemical Changes, Exercise 2: Oral Questions

Attempt the practice questions on Chapter 6: Physical and Chemical Changes, Exercise 2: Oral Questions with hints and solutions to strengthen your understanding. Science 7 solutions are prepared by Experienced Embibe Experts.

Questions from S K Jain and Shailesh K Jain Solutions for Chapter: Physical and Chemical Changes, Exercise 2: Oral Questions with Hints & Solutions

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 6 - Physical and Chemical Changes>Oral Questions>Q 1

Magnesium ribbon is burnt in air. Name the white residue left after the reaction.

HARD
7th CBSE
IMPORTANT
Science 7>Chapter 6 - Physical and Chemical Changes>Oral Questions>Q 2

Give one example of a change which involves both physical and chemical changes.

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 6 - Physical and Chemical Changes>Oral Questions>Q 3

Which property of a substance changes during a chemical change?

HARD
7th CBSE
IMPORTANT
Science 7>Chapter 6 - Physical and Chemical Changes>Oral Questions>Q 4

Identify the chemical change from the list given below.
Burning of cooking gas, Sublimation of ammonium chloride, Dissolving sugar in water.

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 6 - Physical and Chemical Changes>Oral Questions>Q 5

What may occur during a chemical change? Mention one.