Multiple choice

Which of the following is used as barium metal for getting X-ray spectrum of the human digestive system?

  1. BaSO4

  2. BaCl2

  3. BaF2

  4. BaCO3
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A Correct answer
Explanation

Barium sulphate is water soluble and opaque to X-rays,  hence it can be used as barium metal for getting  X-ray spectrum of the human digestive system.

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