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Chemistry
Aluminium reacts with NaOH and forms compound 'X'. If the coordination number of aluminium in 'X' is 6, the correct formula of X is
Q. Aluminium reacts with NaOH and forms compound 'X'. If the coordination number of aluminium in 'X' is 6, the correct formula of X is
2085
203
EAMCET
EAMCET 2009
Coordination Compounds
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A
[
A
l
(
H
2
O
)
4
(
O
H
)
2
]
+
10%
B
[
A
l
(
H
2
O
)
3
(
O
H
)
3
]
14%
C
[
A
l
(
H
2
O
)
2
(
O
H
)
4
]
−
51%
D
[
A
l
(
H
2
O
)
6
]
(
O
H
)
3
25%
Solution:
2
A
l
+
2
N
a
O
H
+
2
H
2
O
⟶
S
o
d
i
u
m
m
e
t
a
a
l
u
mina
t
e
2
N
a
A
l
O
3
+
3
H
2
Sodium meta alurninate, thus formed, is soluble in water and changes into the complex
[
A
l
(
H
2
O
)
2
(
O
H
)
4
]
−
in which coordination number of Al is 6.