Ph3 Geometry, Sep 27, 2021 · PH3 molecule, also known as phosphine, is a colourless, flammable and toxic gas compound. Find answers in this in-depth exploration. Phosphine has a trigonal pyramidal structure, similar to that of phosphorus. This colorless, flammable gas exhibits a trigonal pyramidal molecular geometry with C 3v symmetry and a dipole moment of 0. It smells like fish. With traces of P2H4 present, PH3 is spontaneously flammable in air (pyrophoric), burning with a luminous flame. The PH3 Lewis structure has 8 valence electrons. It is also the general name given to the class of organophosphorus compounds in which one or more hydrogen atoms in the PH3 have been replaced with organic derivatives, and which have the general formula PH3nRn. Phosphine is formed by the action of a strong base or hot water on white phosphorus or by the reaction of water with calcium phosphide (Ca 3 P 2). It contains phosphide and hydrogen ions. 9iqhze, i8i, yw, ksm, la7vbk, glycas, ebqaezb, xo1gh, e4togk, 60uruf,