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 ____.
Held on 21 Jan 2026 · Verified 6 Jul 2026.
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