Atomic weight of barium is 137.34 The equivalent weight of barium is `BaCrO_(4)` used an an oxidising agent in acid medium is

Answer

45.7

Explanation

In acidic medium `BaCrO_(4)` is convereted into `BaCr_(2)O_(7)`
`2CrO_(4)^(2-) + 2H^(+) to Cr_(2)O_(7)^(2-) + H_(2)O`
or `BaCrO_(4) = 3e^(-)`
`therefore` Eq. wt. of `Ba^(2+) =1/3 xx At. Wt`
`=1/3 xx 137.34 = 45.78`