1.

Consider a titration of K_2Cr_2 O_7 solution with acidified Mohr's salt solution using diphenylamine as indicator. The number of moles of Mohr's salt required per mole of dichromate is

Answer»

3
4
5
6

Solution :`6FE^(2+)+ Cr_2 O_7^(2-) + 14 H^+to 2Cr^(3+)+6Fe^(3+)+ 7 H_2O`
fromMohr.s SALT
Noof molesofMohr.ssaltrequiredper moleof dichromateis 6 .


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