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Periodic Classification of Elements and Periodicity - 12
1.
Less electro positive elements like Zn and Pb forms amphoteric Oxides.
a) False
b) True
2.
Highly polar hydrides shows hydrogen bonding in them.
a) False
b) True
3.
The Lattice of SiCl
4
consists of discrete molecules which are non-polar.
a) True
b) False
4.
The binary compounds of hydrogen with other elements are called hydrides.
a) False
b) True
5.
BeO, Al
2
O
3
, ZnO are amphoteric and behave as acids towards bases and bases towards acids.
a) True
b) False
6.
The basicity of main group metal oxides decreases on descending a group in the periodic table.
a) True
b) False
7.
Basic oxides and acidic oxides reacts with one another to give salts.
a) True
b) False
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