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Question
Chemistry
Assertion: Al(OH)3 is insoluble in NH4OH but soluble in NaOH . Reason: NaOH is strong alkali
Q.
Assertion :
A
l
(
O
H
)
3
is insoluble in
N
H
4
O
H
but soluble in
N
a
O
H
.
Reason :
N
a
O
H
is strong alkali
1843
223
The p-Block Elements
Report Error
A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
57%
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
21%
C
If the Assertion is correct but Reason is incorrect
14%
D
If both the Assertion and Reason are incorrect
0%
E
If the Assertion is incorrect but the Reason is correct.
0%
Solution:
A
l
(
O
H
)
3
is soluble in strong alkali like
N
a
O
H
because of formation of meta-aluminate ion
N
a
O
H
+
A
l
(
O
H
)
3
→
N
a
A
l
O
2
+
2
H
2
O