How many complexes among the following are paramagnetic [ M n ( C N ) 6 ] 3 - [ C r ( H 2 O ) 6 ] 3 + [ C o ( e n ) 3 ] 3 + [ V ( C O ) 6 ] , [ N i ( N H 3 ) 6 ] 2 + [ N i ( d m g ) 2 ] [ P t ( C l ) 2 ( N H 3 ) 2 ] [ C u ( N H 3 ) 4 ] 2 +

Question

How many complexes among the following are paramagnetic [ M n ( C N ) 6 ] 3 - [ C r ( H 2 O ) 6 ] 3 + [ C o ( e n ) 3 ] 3 + [ V ( C O ) 6 ] , [ N i ( N H 3 ) 6 ] 2 + [ N i ( d m g ) 2 ] [ P t ( C l ) 2 ( N H 3 ) 2 ] [ C u ( N H 3 ) 4 ] 2 + [ C u ( C N ) 4 ] 3 -

Quantrex Academy · Accepted Answer

Correct answer: 5

[Mn(CN) 6 ] 3 − , [Cr(H 2 O) 6 ] 3+ , [V CO) 6 , [Ni(NH 3 ) 6 ] 2+ , [Cu(NH 3 ) 4 ] 2+ are paramagnetic due to the presence of unpaired electrons.

How many complexes among the following are paramagnetic [ M n ( C N ) 6 ] 3 - [ C r ( H 2 O ) 6 ] 3 + [ C o ( e n ) 3 ] 3 + [ V ( C O ) 6 ] , [ N i ( N H 3 ) 6 ] 2 + [ N i ( d m g ) 2 ] [ P t ( C l ) 2 ( N H 3 ) 2 ] [ C u ( N H 3 ) 4 ] 2 + [ C u ( C N ) 4 ] 3 -

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