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Visible range of hydrogen spectrum will contain the following series:
(1) Pfund
(2) Lyman
(3) Balmer
(4) Brackett
Ans: Balmer
match the graphs alkane,alkeneandalkyne
Discuss the effect of substituents on the acidity of phenolic group?
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In Balmer series of hydrogen atom spectrum which electronic transition causes third line: (1) Fifth Bohr orbit to second one (2) Fifth Bohr orbit to first one (3) Fourth
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