Atomic Structure · JEE Main previous year questions

2017 2 questions

1. Q632017 · 9 Apr 2017 · Shift 1

   The electron in the hydrogen atom undergoes transition from higher orbitals to orbital of radius 211.6 pm. This transition is associated with :

   1. A.Lyman series
   2. B.Balmer series
   3. C.Paschen series
   4. D.Brackett series
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   Answer: B

2. Q692017 · 9 Apr 2017 · Shift 1

   The electronic configuration with the highest ionization enthalpy is :

   1. A.$[\mathrm{Ne}]3{\mathrm{s}}^{2}3{\mathrm{p}}^1$
   2. B.$[\mathrm{Ne}]3{\mathrm{s}}^{2}3{\mathrm{p}}^2$
   3. C.$[\mathrm{Ne}]3{\mathrm{s}}^{2}3{\mathrm{p}}^3$
   4. D.$[\mathrm{Ar}]3{\mathrm{d}}^{10}4{\mathrm{s}}^{2}4{\mathrm{p}}^3$
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   Answer: C