Chemical Bonding And Molecular Structure Question 73

Question: In the dichromate dianion

Options:

A) $ 4,Cr-O $ bonds are equivalent

B) $ 6,Cr-O $ bonds are equivalent

C) All $ Cr-O $ bonds are equivalent

D) All $ Cr-O $ bonds are non-equivalent

Show Answer

Answer:

Correct Answer: B

Solution:

Dichromate dianion has following structure $ {{[ O\to \underset{O}{\overset{O}{\mathop{\underset{\downarrow }{\overset{\uparrow }{\mathop{Cr}}},}}},-O-\underset{O}{\overset{O}{\mathop{\underset{\downarrow }{\overset{\uparrow }{\mathop{Cr}}},}}},\to O ]}^{2-}} $ 6, $ Cr-O $ bonds are equivalent.



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