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Byju's Answer
Standard XII
Chemistry
Zeolites
Zeolites are ...
Question
Zeolites are a microporous catalyst. The general formula of a zeolite may be given as:
A
M
x
/
n
[
(
A
l
O
2
)
x
(
S
i
O
2
)
y
]
.
m
H
2
O
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B
M
[
(
A
l
O
2
)
x
]
.
m
H
2
O
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C
M
x
[
(
A
l
O
2
)
x
(
S
i
O
2
)
y
]
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D
M
x
[
(
S
i
O
2
)
y
]
.
m
H
2
O
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Solution
The correct option is
A
M
x
/
n
[
(
A
l
O
2
)
x
(
S
i
O
2
)
y
]
.
m
H
2
O
Zeolites are microporous catalyst. They are the silicates of the aluminium.
Formula of Zeolites may be given as :
M
x
/
n
[
(
A
l
O
2
)
x
(
S
i
O
2
)
y
]
.
m
H
2
O
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Similar questions
Q.
M
X
(solid)+
E
1
→
M
+
+
X
−
;
M
+
+
n
H
2
O
→
[
M
(
H
2
O
)
n
]
+
+
E
2
;
X
−
+
m
H
2
O
→
[
X
(
H
2
O
)
m
]
−
+
E
3
E
1
,
E
2
and
E
3
are energies, then correct statement is :
Q.
Assertion :Alcohols are dehydrated to hydrocarbons in the presence of acidic zeolites. Reason: Zeolites are microporous catalysts.
Q.
Calculate the value of following expression.
M
(
H
2
)
×
(
M
(
O
2
)
/
M
(
H
2
O
)
)
Given:
M
(
H
2
)
= moles in 24 g
H
2
M
(
O
2
)
= moles in 80 g
O
2
M
(
H
2
O
)
= moles in 72 g
H
2
O
Q.
What is the value of the change in internal energy at 1 atm in the following process?
H
2
O
(
l
,
323
K
)
→
H
2
O
(
g
,
423
K
)
Given :
C
v
,
m
(
H
2
O
,
1
)
=
75.0
J
K
−
1
;
C
p
,
m
(
H
2
O
,
g
)
=
33.314
J
K
−
1
m
o
l
−
1
;
Δ
H
v
a
p
at
373
K
=
40.7
k
J
/
m
o
l
Q.
Zeolites are used as catalyst in
:
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