spin forbidden meaning in Hindi

Examples

1. What is the difference between spin forbidden and classically forbidden?
2. :SPin forbidden reactions would be ones that caused two electrons of the same spin to occupy the same orbital.
3. While thermodynamically very favored, reduction of molecular oxygen or peroxide to superoxide or hydroxyl radical respectively is fortunately spin forbidden.
4. However, in lab we also have " spin forbidden " reactions-- I assume this is a different kind of forbiddance?
5. Decay from triplet states ( phosphorescence ) is spin forbidden, increasing the timescale of the transition and limiting the internal efficiency of fluorescent devices.
6. What is spin forbidden anyway, in layman's terms ? ( Or terms for a second year undergraduate . ) Thanks ! talk ) 08 : 58, 27 October 2009 ( UTC)
7. The figure above shows the spin forbidden O 2 b-band at ~ 14500 cm  " 1 ( 688 nm ) measured in ambient air at atmospheric pressure using a xenon arc lamp compared against a calculated HITRAN spectrum.