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JEEMAIN and NEET
>>
Chemistry
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P-Block elements (Group-13 and Group-14)
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Q)
Borax has the molecular formula
(
A
)
N
a
2
[
B
4
O
3
(
O
H
)
4
]
.6
H
2
O
(
B
)
N
a
2
[
B
4
O
5
(
O
H
)
4
]
.6
H
2
O
(
C
)
N
a
2
[
B
4
O
5
(
O
H
)
4
]
.8
H
2
O
(
D
)
N
a
2
[
B
4
O
6
(
O
H
)
2
]
.8
H
2
O
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