EASY
Earn 100

Write any two differences between physical changes and chemical changes.

Important Questions on Physical and Chemical Changes

MEDIUM
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change

Which of the following are physical changes?

(a) Melting of iron metal        (b) Rusting of iron

(c) Bending of an iron rod     (d) Drawing a wire of iron metal

MEDIUM
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Differentiate between physical and chemical changes.
EASY
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Which among the following is not a physical change?
EASY
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
A mixture of iron filings and sulphur is heated in a hard boiling tube. Which of the following will be observed?
EASY
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Physical changes are
MEDIUM
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
State one difference between a physical and a chemical change.
MEDIUM
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change

Which of the following statements are false? 

HARD
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
A person eats a chocolate and then digests it. In doing so there takes place a physical and a chemical change. Identify the changes and give reason for your answer.
HARD
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Tabulate the differences between physical and chemical changes.
MEDIUM
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Which of the following is not a chemical change?
EASY
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change

What are physical and chemical changes? How will you distinguish between them?

HARD
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
What is the difference between a physical change and a chemical change?
MEDIUM
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Give two examples in which a physical change and a chemical change occur simultaneously.
EASY
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Which among the following is not a chemical change?
MEDIUM
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Give two examples in which a physical change and a chemical change occur simultaneously. 
EASY
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
How will you justify that the formation of water from hydrogen and oxygen is a chemical change and not a physical change?
MEDIUM
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
The colour of magnesium ribbon after rubbing with sand paper is
EASY
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Cotyledons are also called-
EASY
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Define physical change.
MEDIUM
Science>Chemistry>Physical and Chemical Changes>Characteristics of a chemical change
Differentiate between physical and chemical changes.