Consider the following low-spin complexes K 3 [ Co ( NO 2 ) 6 ] , K 4 [ Fe ( CN ) 6 ] , K 3 [ F e ( CN ) 6 ] , C u 2 [ F e ( CN ) 6 ] and Z n 2 [ F e ( CN ) 6 ] The sum of the sp

Question

Consider the following low-spin complexes K 3 ​ [ Co ( NO 2 ​ ) 6 ​ ] , K 4 ​ [ Fe ( CN ) 6 ​ ] , K 3 ​ [ F e ( CN ) 6 ​ ] , C u 2 ​ [ F e ( CN ) 6 ​ ] and Z n 2 ​ [ F e ( CN ) 6 ​ ] The sum of the spin-only magnetic moment values of complexes having yellow colour is. _____ B.M. (answer in nearest integer)

TestHub · Accepted Answer

K 3 ​ [ Co ( NO 2 ​ ) 6 ​ ] = Yellow ⇒ Co 3 + = 3 d 6 ⇒ t 2 g 6 ​ e g 0 ​ ​ K 4 ​ [ Fe ( CN ) 8 ​ ] = Yellow ⇒ Fe 2 + = 3 d 6 ⇒ t 2 g 6 ​ e g 0 ​ K 3 ​ [ Fe ( CN ) 8 ​ ] = Bright Red ⇒ Fe 3 + = 3 d 5 ⇒ t 2 g 5 ​ e g 0 ​ Cu 2 ​ [ Fe ( CN ) 8 ​ ] = Chocolate brown Zn 2 ​ [ Fe ( CN ) 8 ​ ] = White ​ Spin only magnetic moment of complex having Yellow colour is zero.

Chemistry - Coordination Chemistry Question with Solution | TestHub

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