Most Important Selected Qs for JEE AdvancedChemistryStructure of Atom
25 ml of 11.2 volume H ₂ O ₂ solution is titrated with 25 ml _ KMnO ₄ / H ⁺ . If 1 L same KMnO ₄ is used to oxidize 1 mole of an element X so that it is converted into a single species in which ' X ' contains a single electron. If this single species is irradiated with light radiation of 114 Å so that electron is excited into a particular energy level. Determine no. of transitions possible from this energy level to g
Correct answer
3
Step-by-step solution
( H ₂ O ₂ ) N ₁ = KMnOO ₄ / H ⁺ N ₂ ~V ₂ 2 25=N 25N=2 Again KMnO ₄ / H ⁺ N ₁ ~V ₁ = gm eq. of ( X ) 2 1= gm eq. of (X) and n factor of x =2 Since X is converted into single e species Hence X is Li ²⁺ and light radiation of 114 Å corresponds to 108.77 eV . e is excited into 3^ rd energy level and total 3 transitions are possible.