This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Chemistry - 9 Chapter - 4
Periodicity of Elements and Periodic Table
Test - 15
1.
All elements of group 1A are least reactive metals.
a) True
b) False
2.
All elements of group 1A are very reactive metals except hydrogen which is a semi-metal.
a) True
b) False
3.
All elements of group 1A are very reactive metals except hydrogen which is a non-metal.
a) False
b) True
4.
All elements of group 1A are very reactive metals.
a) False
b) True
5.
All elements of group 7A have s
2
, p
5
configuration (7 electron) in outermost shells.
a) True
b) False
6.
An un-reactive gas is filled in red tube lights used for advertisement. What is the name of that gas and to which group does it belong? Short..Answer..............
a) It is a noble gas neon and belongs to group one .
b) It is a noble gas neon and belongs to zero group.
7.
Atomic masses of noble gases were less than _______ and more than _______ elements.
a) Group one, group seven
b) Group seven, group one
c) Group one, group eight
d) Group eight, group one
8.
Elements of group VII are very reactive non-metals and form oxide with metals.
a) True
b) False
9.
Elements of group VII are very reactive non-metals and form salt with metals.
a) False
b) True
10.
Group 1A and 2A on left side contains ______ block.
a) F
b) D
c) P
d) S
This is more feedback!
This is the feedback!
