Hoop's process of purification of aluminium involves formation of layers during electrolysis. This is because [True/False (T = True, F= False)] (i) the three layers have same densities but different materials (ii) the three layers have different densities (iii) the upper layer is of pure aluminium which acts as a cathode (iv) the bottom layer is of impure a aluminium which acts as an anode and middle layer consists of NaF, BaF_(2) and AlF_(3)

Hoop's process of purification of aluminium involves formation of laye

1.	Hoop's process of purification of aluminium involves formation of layers during electrolysis. This is because [True/False (T = True, F= False)] (i) the three layers have same densities but different materials (ii) the three layers have different densities (iii) the upper layer is of pure aluminium which acts as a cathode (iv) the bottom layer is of impure a aluminium which acts as an anode and middle layer consists of NaF, BaF_(2) and AlF_(3)
Answer» FTTF FTTT TTFT FFTF Answer :B