Elements and Substances

Elements and Substances
There are ______ nonmetals.
20
21
22
23
Author: rikazzz Comment
Elements and Substances
Letter used to identify an element in periodic table is known as
idea
hint
symbol
formula
Author: rikazzz Comment
Elements and Substances
Which metal is present in Calcium Hydroxide?
C
O
H
Ca
Author: rikazzz Comment
Elements and Substances
Which of the following form of water is the most contaminated?
Underground water
Water stored in ice caps​
Surface water
Rainwater
Author: rikazzz Comment
Elements and Substances
Elements common in both man and brick wall is
C
O
Ca
all of these
Author: rikazzz Comment
Elements and Substances
The property of metals by which they can be beaten in to thin sheets is called
Ductility
Expansion
Conduction
Malleability
Author: rikazzz Comment
Elements and Substances
Metallic oxides are
Neutral
Basic in nature
Acidic is nature
Either acidic or basic
Author: rikazzz Comment
Elements and Substances
Remaining solid on filter paper is known as
stone
residue
particles
solution
Author: rikazzz Comment
Elements and Substances
The atomic number of sulphur is…
15
16
17
18
Author: rikazzz Comment
Elements and Substances
Which one of the following is metal?
C
O
N
Na
Author: rikazzz Comment

Go to Page