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Chemistry
Chemistry
Problem
Which of the following does not contain any co-ordinate bond? a.
H
3
O
+
\text{H}_3\text{O}^+
H
3
O
+
b.
BF
4
−
\text{BF}_4^-
BF
4
−
c.
HF
2
−
\text{HF}_2^-
HF
2
−
d.
NH
4
+
\text{NH}_4^+
NH
4
+
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