Identify the metal M and hence MCI4. Explain the difference in colours of MCl4 and A.

Question

B (white fumes having small) ← (moist air) MCl4 (M = (transition element colourless) + Zn → A (purple colour)

Identify the metal M and hence MCI₄. Explain the difference in colours of MCl₄ and A.

Answer 1

Ti (+IV) ion contains no d-electron, while d-d-transition of single electron of Ti (+III) will cause colour change.