Q. Assertion : Transition metals are poor reducing agents.
Reason : Transition metals form numerous alloys with other metals.

 3038  180 AIIMSAIIMS 2010The d-and f-Block Elements Report Error

Solution:

In actual practice transition metals react with acid very slowly and act as poor reducing agents. This is due to the protection of metal as a result of formation of thin oxide protective film. Further, their poor tendency as reducing agent is due to high ionisation energy, high heat of vapourization and low heat of hydration.