A mixture of K_(2)C_(2)O_(4) and KHC_(2)O_(4) required equal volumes of 0.1 M K_(2)Cr_(2)O_(7) for oxidation and 0.1 M NOH for neutralisation is separate titratiosn. The molar ratio of K_(2)CrO_(4) and KHC_(2)O_(4) in the mixture is

A mixture of K_(2)C_(2)O_(4) and KHC_(2)O_(4) required equal volumes o

1.	A mixture of K_(2)C_(2)O_(4) and KHC_(2)O_(4) required equal volumes of 0.1 M K_(2)Cr_(2)O_(7) for oxidation and 0.1 M NOH for neutralisation is separate titratiosn. The molar ratio of K_(2)CrO_(4) and KHC_(2)O_(4) in the mixture is
Answer» `1:1` `2:1` `1:2` `3:1` SOLUTION :LET no. of moles of `K_(2)C_(2)O_(4)=a&` no. of moles of `KHC_(2)O_(4)=b` Eqts of `K_(2)C_(2)O_(4)+` Eqts of `KHC_(2)O_(4)` = Eqts of `K_(2)Cr_(2)O_(7)` `(axx2)+(bxx2)=0.1xx6xxv....(1)` Eqts of `KHC_(2)O_(4)` = Eqts of NaOH `(bxx1)=0.1xx1xxv....(1)` On SOLVING (1), (2) a : b = 2 : 1