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The third line in Balmer series corresponds to an electronic transition between which Bohr's orbits in hydrogen:
(1) 5 → 3
(2) 5 → 2
(3) 4→ 3
(4) 4 → 2
Ans: 5 → 2
The tendency to metal to lose electrons or tendency of its ions to gain electrons depends upon the concentration of the ions in solution. At the same time, the tendency to lose or
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