In oxy hemoglobin, O_2 is bonded to iron as a bridge between two iron atoms. in

ID: 527800 • Letter: I

Question

In oxy hemoglobin, O_2 is bonded to iron as a bridge between two iron atoms. in a bent fashion. in a linear fashion. Side-on with O-O perpendicular to the metal-ligand bond. Choose the species that is the reaction product of the enzyme nitrogenase. an amino acid. ammonia histidine nitric oxide Which point group is possible for a molecule if it possesses a permanent dipole moment? C_2h C_4v D_ O_k Which symmetry element is not found in the SiF_4 molecule? an improper rotation axis an inversion center a mirror plane a three-fold rotation Which is the point group of the molecule Ash, ? C_3 C_3v C_3k C_3k Which does not have a center of inversion? CO_2 I^-_3 Sef_4 XeF_4 which is the lowest free-ion spectroscopic state for a d^2 electron configuration?^1D 1^S^3F^3P

Explanation / Answer

QUESTION 54

Answer b) bent fashion

QUESTION 55

Answer b) ammonia

QUESTION 56

Answer b) C4v) molecules

QUESTION 57

Answer b) inversion center

six mirror planes of symmetry

QUESTION 58

Answer b) C3v

Oxyhemoglobin :

it is a Fe(III) species, rather than Fe(II).

The iron is oxidized by the bound oxygen in bent fashion.

AsH3 is C3v

It is due to the primary C3 axis

It has 3 vertical planes of reflection.