RRB NTPC Mains or Stage 2 Model Paper 9 with solutions

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Question : 101 of 120

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Before X-ray examination (coloured X-ray) of the stomach, patients are given suitable salt of barium because.

barium is a good absorber of X-rays and helps stomach to appear clearly
barium salts are white in colour and this helps stomach to appear clearly
barium allows X-rays to pass through the stomach
barium salts are easily available

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