Mole concept IMPORTANT Ques!!

A 50 ml 1.92% (W/V) solution of a metal ion Mn+ ( atomic weight = 60 ) was treated with
5.332 g hydrazine hydrate (90% pure) and mixture was saturated with CO2 gas when entire metal gets precipitate as a complex [M(H2N-NHCOO)n]. The complex was filtered off and the filtrate was titrated with M/10 KIO3 in the presence of conc. HCl according to the following reaction:
N2H4 + IO3- +2H+ + 2Cl- -------- ICl + 3H2O + N2
The volume of M/10 KIO3 solution needed for the end point to arrive was 480 ml. Find the value of n.

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