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Chemistry - 9 Chapter - 4
Periodicity of Elements and Periodic Table
Test - 33
1.
Nanometer (nm) is equal to
a) 10
-8
m
b) 10
-7
m
c) 10
-9
m
d) 10
-5
m
2.
The physical and chemical properties of elements depend upon their
a) Atomic weigh
b) Atomic size
c) Atomic number
d) Atomic mass
3.
Colour of hair of different people differs due to the presence of:
a) Radioactive elements
b) Transition elements
c) Non-metals
d) Metals
4.
The element which is not a transition element is:
a) Tungsten
b) Germinium
c) Silver
d) Cadmium
5.
Uranium has atomic mass:
a) 292
b) 283
c) 238
d) 290
6.
Amphoteric oxide is:
a) P
2
O
5
b) CaO
c) AI
2
0
3
d) Na
2
O
7.
The most reactive non-metal is
a) Phosphorous
b) Fluorine
c) Chlorine
d) Hydrogen
8.
Number of elements in the 5th period of periodic table is
a) Eight
b) Nine
c) Eighteen
d) Seven
9.
Select the two which are not a coinage metal
a) Au & Pt
b) Cu & Au
c) Ag & Au
d) Pt & Rb
10.
Lanthanide series starts from
a) 4th period
b) 3rd period
c) 5th period
d) 6th period
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