TS EAMCET 11-Sep-2020 Shift 2 Solved Paper

K2Cr2O7 mostly react in acidic medium as oxidising agent. The reaction occurs as follows :
∵ Reaction involve 6e− electrons.
Thus,
Equivalent weight =‌

‌ Molar mass ‌

‌ Number of electrons ‌

=‌

294

6

=49
∵ We have to prepare 0.04N of 250mL solution.
(∵250×4=1000mL)
Thus, ‌

0.04

4

=0.01
and weight of K2Cr2O7 is =49×0.01=0.49g