1.

Which of the following statements is/are correct :

Answer»

Equivalent mass of `Br_3O_8` in the reaction is 23.
`Br_3 O_8+I^(-)+H^+toBr_2+I_2+H_2O`
In case of oxalic acid `(H_2C_2O_4)`, the AVERAGE oxidation number and individual oxidation number of Carbon have the same value.
In case of iodimetric titration, KI is made to react with an oxidising agent and the liberated `I_2` gas is made to titration with hypo solution.
Equivalent mass of `Cu_3P` in the given reaction is `M//11` (where M=mol. Mass)
`Cu_3P+KMnO_4+H^+toCu^(2+)+H_2PO_4^(-)+K^+ + Mn^(2+)`

Solution :(A)v.f. of `Br_3O_8=3(16/3-0)=16 :.` equivalent mass =M/16=368/16=23.
(B)In case of oxalic acid `(H_2C_2O_4)` , the average oxidation number and individual number of Carbon have the same value, equal to +3.
( C )In case of IODOMETRIC titration, Kl is made to react with an oxidising agent and the liberatred `I_2` gas is made to titrate with hypo solution.
(D)v.f. of `Cu_3P=3(2-1)+1(5-(-3))=11 :.` equivalent mass =M/11


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