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Tardigrade
Question
Chemistry
The crystalline form of borax has
Q. The crystalline form of borax has
2845
220
JEE Advanced
JEE Advanced 2016
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A
tetranuclear
[
B
4
O
5
(
O
H
)
4
]
2
−
unit
B
all boron atoms in the same plane
C
equal number of
s
p
2
and
s
p
3
hybridized boron atoms
D
one terminal hydroxide per boron atom
Solution:
Crystalline form of borax is
N
a
2
B
4
O
7
⋅
10
H
2
O
or
N
a
2
[
B
4
O
5
(
O
H
)
4
]
.8
H
2
O
its structure is,
