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Question
Chemistry
Which of the following compound is formed in borax bead test
Q. Which of the following compound is formed in borax bead test
1607
195
NTA Abhyas
NTA Abhyas 2020
The p-Block Elements - Part2
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A
Meta borate
100%
B
Tetra borate
0%
C
Double oxide
0%
D
Ortho borate
0%
Solution:
N
a
2
B
4
O
7
.10
H
2
O
−
10
H
2
O
→
N
a
2
B
4
O
7
→
Δ
2
N
a
B
O
2
+
B
2
O
3
C
u
O
+
B
2
O
3
→
(Copper meta borate blue)
C
u
(
B
O
2
)
2