Question

2.1 g of anhydrous barium sulphate solution is completely converted into 2.36 g of barium sulphate on treating with excess sulphuric acid solution. The equivalent mass of barium is
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Answer 1

Answer:

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Text Solution

A

137.34

B

45.78

C

114.45

D

68.67

Answer

B

Solution

CrO_(4)^(2-)

(and not

Ba^(2+)

) is involved as an oxidising agent and reduced to

Cr^(3+)

hence,

Ew=(Mw)/(3)