Element can be exist either atom or…….
a) compound
b) ion
c) molecule
d) mixture
Explanation:a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.
Which of the
following is/are fixed for element?
a) boiling point
b) melting
point
c) both a and b
d) none of them
Mixture is made up of two or more substances that are ……..combined.
a) chemically
b) physically
c) biologically
d) all of these
In which of the following, the properties of the components are retained?
a) compound
b) ion
c)molecule
d) mixture
In which of the following, the components can be separated easily?
a) compound
b) mixture
c)molecule
d) all of these
In which of the following, no new substance is formed?
a) compound
b) mixture
c)molecule
d) all of these
