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JEEMAIN and NEET
>>
Chemistry
>>
s-Block Elements
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Q)
The pair of amphoteric hydroxides is :
(
a
)
B
e
(
O
H
)
2
,
Z
n
(
O
H
)
2
(
b
)
A
l
(
O
H
)
3
,
L
i
O
H
(
c
)
B
(
O
H
)
3
,
B
(
O
H
)
2
(
d
)
B
e
(
O
H
)
2
,
M
g
(
O
H
)
2
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