| Barium in a suitable form is administered to patients before an X-ray examination of the stomach, because |
| (a)Berium allow x-rays to pass through the stomach on account of its transparency to x-rays. |
| (b)Barium compound, like magnesium sulphate helps in cleaning the stomach before taxes examination |
(c)Barium salts are white in color and this help the stomach to appear clearing in contract with the other region in the picture  |
| (d)Barium is a good observer of X-rays and this helps the stomach to appear clearing in contact with other region in picture |
