LPG gas is a/an…………….
a) heterogeneous mixture
b) compound
c) homogeneous mixture
d) element
LPG gas is a
homogeneous mixture of ……..
a) metal and non-metal
b) hydrocarbons
c) non-metals
d) metals
Hydrocarbons are…………...compound.
a) metallic
b) mixture
c) organic
d) inorganic
Hydrocarbons are organic compound made up of carbon and ………..
a) oxygen
b) hydrogen
c) iron
d) all of these
Air is a mixture of …….
a) nitrogen and oxygen
b) carbon dioxide and hydrogen
c) smoke and dust
d) all of these
The components of air can be separated by ……..method.
a) physical
b) chemical
c) biological
d) metallurgical
