AIEEE 2008 EXAMINATION
PAPER (Code-A6)
1. The ionization enthalpy of hydrogen
atom is 1.312 × 106 J mol–1. The energy required to excite the electron in
the atom from n = 1 to n = 2 is
(1) 6.56 × 105 J mol–1 (2) 7.56 × 105 J mol–1
(3) 9.84 × 105 J mol–1 (4) 8.51 × 105 J mol–1
Ans. [3]