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What are the respective central-metal oxidation state, coordination number, and overall charge
on the complex ion in Na2[Cr(NH3)2 (NCS)4]? O +3, 6;+1 O +2, 4;-1 Submit Request Answer
Solution
Answer -
We have the formula of the compound as Na 2 [Cr(NH 3 ) 2 (NCS) 4 ].
To find oxidation number we have to knnow that Na forms Na +
in ionic state and NCS forms
NCS -
.NH 3 have no charge and neutral in the solution.
Now,
0=2*1+x+3*0+4*(-1)
x=2 ,Hence the oxidation state is +2.
Coordination number - The number of compound in attach to the centra atom.
Two NH3 and 4 NCS . Hence coordination number is 6.
Overall charge =2+ of Na and (-4) of NCS molecules =-2

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What are the respective central-metal oxidation state- coordination nu.docx

  • 1. What are the respective central-metal oxidation state, coordination number, and overall charge on the complex ion in Na2[Cr(NH3)2 (NCS)4]? O +3, 6;+1 O +2, 4;-1 Submit Request Answer Solution Answer - We have the formula of the compound as Na 2 [Cr(NH 3 ) 2 (NCS) 4 ]. To find oxidation number we have to knnow that Na forms Na + in ionic state and NCS forms NCS - .NH 3 have no charge and neutral in the solution. Now, 0=2*1+x+3*0+4*(-1) x=2 ,Hence the oxidation state is +2. Coordination number - The number of compound in attach to the centra atom. Two NH3 and 4 NCS . Hence coordination number is 6. Overall charge =2+ of Na and (-4) of NCS molecules =-2