railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test General Science Chemistry Chemistry in Everyday Life
A patient's abdomen (alimentary canal) can be examined by X-ray after administering which one of the following metal salts in the patient's meal?
1
Barium sulphate
2
Barium chloride
3
Strontium sulphate
4
Magnesium chloride