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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
Energy of the electron in Hydrogen atom is given by: (1) E n = 131.38/ n 2 x kj mol -1 (2) E n = 131.33/n xkj mol -1 (3) E n = 1313.3/ n 2 x kj mol
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Formic acid is a weak acid along with a pKa of 3.75. The name comes by the Latin term "formica" ("ant") since this is very plentiful into the secretions of several species of ants,
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In hydrogen spectrum the different lines of Lyman series are present is : (1 )UV field (2) IR field (3) Visible field (4) Far IR field Ans: UV field
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