Assertion : [Ti(H2O)6]^+3 is coloured while [Sc(H2O)6]^+3 is Colourless Reason : d-d transition is not possible in [Sc(H2O)6^+3
Assertion : [Ti(H2O)6]+3 is coloured while [Sc(H2O)6]+3 is Colourless Reason : d-d transition is not possible in [Sc(H2O)6+3(A) If both assertion and reason are true and the reason is the correct explanation of the assertion.(B) If both a ssertion and reason are true but reason is not the correct explanation of the assertion. (C) If assertion is true but reason is false. (D) If the assertion and reason both are false. (E) If the assertion is false but reason is true.
Answers
The correct answer is Option C. The assertion that [Ti(H2O)6]+3 is coloured while [Sc(H2O)6]+3 is colourless is true, however, the reason that the reason given is d-d transition is not possible in [Sc(H2O)6]+3 is false. The colourless nature of [Sc(H2O)6]+3 is due to the fact that the energy difference between the completely filled and completely empty orbitals is very small.
