Answer to Question #67763 in Physical Chemistry for Rahmat

Question

1. State the oxidation state of the central atom in the following species:
(a) SiBr4
(b) Cr(NH3)6Cl3
(c) NO3-
(d) PO4^3-

2. Balance the following oxidation-reduction reaction in acidic solution:
MnO4- + C2O4^2- >>>>>>>>>>>>> Mn2+ + CO2

3. In general, analogous bonds weaken down a periodic group, whereas for
dihalogen molecules, X2 we find the following bond strengths:
F-F 158; Cl-Cl 242; Br-Br 193; I-I 151 kJ mol-1

Comment on the reason for the normal trend and the exceptional value for
F2?

4. Draw all possible isomers of:
(a) [Co(NH3)3Cl3]
(b) [Ni(PMe3)(PEt3)Cl2]

Answer 1

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