An aqueous solution of [Ti(H2O)6]3+ ion has a mild violet colour of low intensity. Which of the following statements is incorrect?
Correct answer: D. The transition is the result of metal-ligand back bonding
- A. The ion absorbs visible light in the region of ~ 5000 Å
- B. The colour results from an electronic transition of one electron from the t2g to an eg orbital
- C. The low colour-intensity is because of a low probability of transition
- D. The transition is the result of metal-ligand back bonding
Explanation
[Ti(H2O)6]3+ has one unpaired electron in its d-subshell which gives rise to the d-d transition to impart colour. Whenever light falls on the transition element compounds electrons excite and electrons absorb energy and excite. When these electrons de-excite they release visible light wavelength. That's why transition element compounds exhibit colour.
Last updated
About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
Practise Transition Elements
531 free Transition Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
1st series of transition elements start from?
3d-series of transition elements contains elements in the range from:
A transition element is best defined as one that
Acidified potassium permanganate acts as a strong oxidising agent and in doing so the purple manganate seven ion is reduced to
Across the first transition series from scandium to zinc, the atomic radius