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All electrons on the 4p sub-shell must be characterized by the quantum number(s):
(1) n=4, m= 0, s= ± 1/2
(2) l=1
(3) l=0, s= ± 1/2
(4) s= ± 1/2
Ans: l=1
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Theory of Meta directing group The substituent, S takes electrons from para and ortho positions. So, m-position becomes a position of comparatively high electron density and fu
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