Tardigrade
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Tardigrade
Question
Chemistry
Na2B4O7 + X → H3BO3. What is X in the reaction?
Q.
N
a
2
B
4
O
7
+
X
→
H
3
B
O
3
. What is
X
in the reaction?
2104
252
The p-Block Elements
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A
Aqueous solution of
N
a
O
H
20%
B
Dilute nitric acid
30%
C
Cone.
H
2
S
O
4
or
H
Cl
20%
D
Water
30%
Solution:
N
a
2
B
4
O
7
+
2
H
Cl
+
5
H
2
O
→
2
N
a
Cl
+
4
H
3
B
O
3
N
a
2
B
4
O
7
+
H
2
S
O
4
+
5
H
2
O
→
N
a
2
S
O
4
+
4
H
3
B
O
3