Question

Which of the following does not contain any coordinate bond?
(a) H₃O⁺
(b) $BF_4^-$
(c) $HF_2^-$
(d) $SO_2^-$

Answer 1

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your answer is a

explanation of your answer

A metal-containing ring like that shown is called a chelate ... more stable than the corresponding complexes of ... this increase in stability is called the chelate effect

Answer 2

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ans

option.A

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