Class-10 NCERT (CBSE), Non- Metal: Physical Properties.

1. AKANKSHA
INTEGRATED B.SC. B.ED
LOVELY PROFESSIONAL UNIVERSITY, PHAGWARA

2.  Non-metals exist in solid and gaseous state, for example
Nitrogen, Oxygen, Carbon, Sulphur.

3.  Br2 is a liquid.

4.  They lack luster (shine).

5.  Diamond and Graphite are lustrous.

6.  They are soft in nature.

7.  Diamond is the hardest natural substance known.

8.  .
Non-metals are not
malleable and ductile
because they are brittle.
They break on being
hammered or stretched as
they have low tensile
strength.

9. Que-1. Which of the following statements is correct?
(a) All metals are ductile.
(b) All non-metals are ductile.
(c) Generally, metals are ductile.
(d) Some non-metals are ductile.
Que-2. Which of these non- metals are used in fertilizers?
(a) Nitrogen
(b) Phosphorus
(c) Iodine.
(d) Both a & b