MCQ
According to Bohr hypothesis, discrete quantity is:
- AMomentum
- BAngular velocity
- CPotential energy
- DAngular momentum
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$(i) $ in filling a group of orbitals of equal energy, it is energetically preferable to assign electrons to empty orbitals rather than pair them into a particular orbital.
$(ii)$ When two electrons are placed in two different orbitals, energy is lower if the spins are parallel.are valid for
$NH_4HS(s) \rightleftharpoons NH_3 (g) + H_2S(g)$
If more $NH_4HS$ is added to the equilibrium