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QAIPMT-2005-Ch-2502: NEET 2005 Chemistry - Class 11 AIPMT-2005-Ch-2502 Solution: The aqueous solution containing which one of the following ions …
The aqueous solution containing which one of the following ions will be colourless? (Atomic number: Sc = 21 Fe = 26 Ti = 22 Mn = 25)
Multiple Choice Options
- A _ 41 kJ mol _ 1
- B _ 82 kJ mol _ 1
- C _ 164 kJ mol _ 1
- D _ 1312 kJ mol _ 1
Step-by-Step Verified Solution
E n = -K ( Z n ) 2
Z = 1; n = 2
E 2 = _ K _ 1 4 _ E 2 = -328 kJ mol -1 ;
K = 4 _ 328
E 4 = _ K _ 1 16 _ E 4 = -4 _ 328 1 16
= -82 kJ mol -1