The first transition series metal 'M' has the highest enthalpy of atomisation in its series. One of its aquated ion (Mn+) exists in green colour. The nature of the oxide formed by the above Mn+ ion is

Question

The first transition series metal 'M' has the highest enthalpy of atomisation in its series. One of its aquated ion (Mn+) exists in green colour. The nature of the oxide formed by the above Mn+ ion is :

(A) neutral
(B) amphoteric
(C) acidic
(D) basic

Prashant Kotian · Accepted Answer

Correct answer: D. In 3d series vanadium has highest enthalpy of atomization and colour of V3+ is green. Oxide form by V3+ is V2O3 (Basic oxide)

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