Difference between Pure Substances and Mixtures:
A pure substance consists only of one element or one compound. a mixture consists of two or more different substances, not chemically joined together.
A pure
substance is a form of matter that has the …….composition throughout the
matter.
a) same
b) not known
c) different
d) sometimes same and sometimes different
Which of the following is/are pure substance/s?
a) mixtures
b) compounds
c) elements
d) both b and c
Which of the following is/are NOT pure substance/s?
a) mixtures
b) compounds
c) elements
d)both b and c
Which of the following is/are the example/s of element (pure substance)?
a) oxygen
b) hydrogen
c) iron
d) all of these
Which of the following is/are the example/s of compounds (pure substance)?
a) table salt
b) water
c) ammonia
d) all of these
