The use of `BaSO_4` in taking X-ray pictures of digestive tract is based on
A. Insolubility in water
B. great scattering of X-rays by `Ba^(2+)` ions
C. Both of these
D. None of these

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1 Answers

Correct Answer - C
Like alkali metals, alkaline earth metals also dissolve in liquid ammonia to give deep blue solution.

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