Question

EACH QUESTION WILL CARRY ONE MARK
A Fill in the blanks
1. Physical changes are -----and can be---------by
changing the conditions.
2. Chemical changes can not be reversed by simple
methods.
3. A new product formed during a chemical change is
completely different from original substance in respect of -
------and properties.
4. Chemical changes involves either ---or --------of
energy
5. Method used for separating oil in Ink is called
6. Handpicking is used for mixture that contains particles
with different
---------and
7. Mixture of solid particles with one is heavier than the
other,can be separated by ---and
8. Separation of iron articles in a junk yard uses the
technique of
9. Rutherford showed that --------rays come out of unstable
nuclei.
10. Electrons
revolve around the nucleus in fixed paths,
are called
Number of protons and number of neutrons of an
atom form it's
12.
Atomic number is the number of
-present
In the nucleus of an atom.
is the combining capacity of atom with
other atoms to form a molecule or a compound.
14. Matter is defined as anything That occupies
and has
15. The three states of matter are classified on the basis
of difference in the ------of their molecules.
10:18 am
be
13.​

Answer 1

Explanation:

1) are Reversible and can be Reversed..

3) in respect of Chemical and physical properties..

4)either Loss Or Gain of energy