In the alumino thermite process, $Al$ acts as

$(I)$ $FeCr_2O_4+NaOH +$ air $\rightarrow Na_2CrO_4+Fe_2O_3$

$(II)$ $Na_2CrO_4 + H_2SO_4 \rightarrow Na_2Cr_2O_7$

$Na_2CrO_4$ and $Fe_2O_3$ are separated by

Correct match is 

$Ore$ $-$ $Process$ $-$ $Method$

Given below are two statements.

Statement $I:$ During electrolytic refining, blister copper deposits precious metals

Statement $II:$ In the process of obtaining pure copper by electrolysis method, copper blister is used to make the anode.

In the light of the above statements, choose the most appropriate answer from the options given below.

Which one of the following statements is incorrect