Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Which of the following statements about \[{{[Fe{{({{H}_{2}}O)}_{5}}NO]}^{2+}}\]are correct? (1) O.S. of Fe is +1 (2) C.N. of Fe is 6 (3) Charge on NO is +1 (4) O.S. of Fe is +2A) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: A
Solution :
In\[{{[Fe{{({{H}_{2}}O)}_{5}}NO]}^{2+}},\] Number of monodentate ligands\[=5+1=6\] \[\therefore \]Coordination number = 6 The charge on NO is +1. Let the oxidation state of Fe in the complex is\[x\]. \[x+(0\times 5)+1=+2\] \[x=2-1=1\] \[\therefore \]Fe is present as\[F{{e}^{+}}\].
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