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Two compounds Co(NO2)3 and KNO2 are mixe...

Two compounds `Co(NO_2)_3` and `KNO_2` are mixed together in 1 : 3 proportion to form a complex which produces four particles in solution. What is the correct formula for the complex?

A

`K_2[Co(NO_2)_6]`

B

`K_2[Co(NO_2)_4]_3`

C

`K_3 [Co(NO_2)_6]`

D

`K_2[Co(NO_2)_3]_3`

Text Solution

Verified by Experts

The correct Answer is:
C
`Co(NO_2)_3 + 3KNO_2 to K_3 [Co(NO_2)_6] to underset("Produces four ions")(ubrace(3K^(+) + [Co(NO_2)_6]^(3-))`
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