Why the explosion of nitroglycerin is a chemical change?
a) no new substance is formed
b) new different gases are produced
c) it is a reversible change
d) all of these
Which of the following is/are example/s of chemical property/ies?
a) flammability
b) ability to rust
c) reactivity of many types
d) all of these
……is defined as how easily can a substance burn?
a) combustion
b) burning
c) flammability
d) rusting
Which
of the following is flammable matter?
a) iron
b)
salt
c) wood
d) water
Which of the following is/are highly inflammable that is/are hazardous as it/they ignite/s at moderate temperature?
a) gasoline
b) acetone
c) diethyl ether
d) all of these
Where the hazardous sign on certain places is displayed?
a) petrol stations
b) perfume
c) sprays
d) all of these
