Consider the following reactions
NaCl+K2Cr2O7+H2SO4→A+KHSO4+NaHSO4+H2O
A+NaOH→B+NaCl+H2O
B+H2SO4+H2O2→C+Na2SO4+H2O
In the product 'C', 'X' is the number of O22- units, 'Y' is the total number oxygen atoms present and 'Z' is the oxidation state of Cr. The value of X + Y + Z is ______. [2026]
(13)
A→CrO2Cl2 B→Na2CrO4 C→CrO5
X=2, Y=5 and Z=6