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The aqueous solution containing which one of the following ions will be colourless?
(Atomic Number of Sc = 21, Fe = 26, Ti = 22 , Mn = 25)
(Atomic Number of Sc = 21, Fe = 26, Ti = 22 , Mn = 25)
- a)Sc3+
- b)Fe2+
- c)Ti3+
- d)Mn2-
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
The aqueous solution containing which one of the following ions will b...
(a) 
. It is colourless due to the absence of unpaired electrons in d-subshell.
(b)
. It is coloured due to the presence of four unpaired eletrons in d-subshell.
(c)
lt is coloured due to the presence of one unpaired electron in d-subshell.
(d )
. It is coloured due to 5 unpaired electrons in d-subshell.
. It is colourless due to the absence of unpaired electrons in d-subshell.(b)
. It is coloured due to the presence of four unpaired eletrons in d-subshell.(c)
lt is coloured due to the presence of one unpaired electron in d-subshell.
(d )
. It is coloured due to 5 unpaired electrons in d-subshell.Most Upvoted Answer
The aqueous solution containing which one of the following ions will b...
Sc3+ ion will form a colourless solution.
- Explanation:
- Scandium (Sc) has an atomic number of 21.
- Scandium ions in the +3 oxidation state (Sc3+) do not have any partially filled d orbitals.
- Since Scandium does not have any unpaired electrons in its d orbitals, it does not exhibit any d-d transitions that lead to the absorption of visible light.
- As a result, the aqueous solution containing Sc3+ ions will be colourless.
- On the other hand, Fe2+, Ti3+, and Mn2+ ions have partially filled d orbitals, and they can exhibit d-d transitions that result in the absorption of certain wavelengths of light, giving coloured solutions.
- Therefore, the correct answer is option 'A' - Sc3+ ion will form a colourless solution.
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The aqueous solution containing which one of the following ions will be colourless?(Atomic Number of Sc = 21, Fe = 26, Ti = 22 , Mn = 25)a)Sc3+b)Fe2+c)Ti3+d)Mn2-Correct answer is option 'A'. Can you explain this answer?
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