A polyvalent metal weighing 0 1 g and atomic weight 51

Last updated: 7/4/2023

A polyvalent metal weighing 0 1 g and atomic weight 51 reacted with dil H SO4 to evolve 43 9 ml of H2 at STP This solution containing metal in lower oxidation state was found to require 58 8 ml of 0 1 N permanganate for complete oxidation Identify the higher oxidation state of the metal A 2 C 5 B 3 D 7