Page 7 - HA
P. 7
Q6 Naphthalene is a component of petroleum and can be obtained 1
by_____________
Concept: Physical and chemical changes
Q1. Assertion: Burning of wood is a chemical change. 1
Reason: No new substance is formed.
Q2 Assertion: A chemical change is associated with change in mass. 1
Reason: New substances are formed during chemical change.
Q3 Assertion: Breaking of glass is a chemical change. 1
Reason: As it is an irreversible change.
Q4 Which of the following is a chemical change? 1
a) Boiling of water
b) Melting of wax
c) Charging a car battery
d) Cutting of wood
Q5 Chemical changes are associated with 1
a) Change in mass
b) Formation of new substance
c) Reversible change
d) None of the above
Q6 Physical changes are ____________ changes which involves formation 1
of___________ substances.
