In acidic medium potassium dichromate acts as an oxidant according to the equation, \[C{{r}_{2}}O_{7}^{2-}+14{{H}^{+}}+6{{e}^{-}}\to 2C{{r}^{3+}}+7{{H}_{2}}O\]. What is the equivalent weight of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]? (mol. Wt. = M) [MP PET/PMT 1998]

• A. \[M\]
• B. \[M/2\]
• C. \[M/3\]
• D. \[M/6\]