(1) In a complexometric residual titration using N22EDTA VS as the excess titrant and ZnSO4 VS as the back titrant, the endpoint in the sample titration is indicated by the complexation of zinc with the metallochromic indicator. (11) In a complexometric direct titration with blank determination using Na2EDTA VS, the endpoint in the blank titration is indicated by the complexation of Na2EDTA with the metallochromic indicator. O Statements (1) and (II) are incorrect. O Only statement (1) is correct. O Statements (1) and (II) are correct. O Only statement (II) is correct.