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Byju's Answer
Standard XII
Chemistry
Hybridisation Involving d Orbitals
When two sili...
Question
When two silicon atoms are isomorphously substituted by two
A
l
3
+
i
n
a
(
S
i
O
2
)
4
network, the number
of the charges on the aluminosilicate anion is.
___
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Solution
(
S
i
O
2
)
4
→
(
S
i
4
O
8
)
→
[
A
l
2
S
i
2
O
8
]
x
−
+
6
+
8
−
16
=
−
2
,
x
=
2
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Similar questions
Q.
When two silicon atoms are isomorphously substituted by two
A
l
3
+
i
n
a
(
S
i
O
2
)
4
network, the number
of the charges on the aluminosilicate anion is.
___
Q.
Silica is a network solid with
S
i
−
O
−
S
i
bonds. In many aluminosilicates, a few
S
i
atoms in the silica structure are replaced by
A
l
atoms. Zeolites, clays, asbestos etc. are examples
of aluminosilicates having different structures. The statement which is not correct is:
Q.
Assertion : Zeolites are the three-dimensional network silicates.
Reason: Negative charge on zeolite structure is neutralised by positively charged
A
l
3
+
ions.
Q.
A silicon specimen is made into a p-type semiconductor by doping on the average one indium atom per
5
×
10
7
silicon atoms. If the number density of atoms in the silicon specimen is
5
×
10
28
atoms
/
m
3
. Then the number of acceptor atoms in silicon will be.
Q.
In which of the anions of silicates, two oxygen atoms are shared by other units?
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