For X-ray examination of the alimentary canal (Barium meal), a suspension of Barium sulfate (BaSO4) is used as a contrast medium. Barium sulfate is very insoluble and thus passes through the digestive system safely. Barium metal is highly reactive and toxic, and would react with water or acids in the body, making it unsuitable and dangerous for internal consumption or medical use in this manner.
Which one of the following statements about alkaline earth metals is NOT true ?
Asked in UPSC CAPF 2020 · Topic: Metals, Minerals, Ores: Properties, Uses (Uses of common metals and their compounds in industries and daily life)
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Answer: B. Barium metal is used in medicine to examine the alimentary canal of a patient by X-ray
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