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Respiratory Diseases

Respiratory d...

Question

Respiratory disorders are caused when the capacity of R.B.C. to carry oxygen is lessened. This happens when ___ is inhaled.

A

sulphur dioxide

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B

nitrogen trioxide

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C

carbon dioxide

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D

carbon monoxide

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Solution

The correct option is D
carbon monoxide

Carbon monoxide reacts with R.B.C. to form carboxyhemoglobin.
This lessens the capacity of the R.B.C. to carry oxygen and results in respiratory disorders.
Thus, option D is correct.

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