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Which of the following sulphates is usef...

Which of the following sulphates is useful in diagnosing stomach or duodenal ulcers ?

A

`BaSO_(4)`

B

`SrSO_(4)`

C

`CaSO_(4)`

D

`MgSO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
A
`BaSO_(4)` is both insoluble in water and opaque to X rays. Thus, it is used as a barium meal to provide a shadow of the stomach or duodenum on an X-ray picture, which is useful in diagosing stomach or duodenal ulcers. The practically no solubility of `BaSO_(4)` in water is used to detect as well as estimate `SO_(4)^(2-)` ions.
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