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Read the given statements and select the...

Read the given statements and select the correct option.
Statement 1 : Traffic jams are likely to cause giddiness, exhaustion, reduced vision, etc.
Statement 2 : Carbon monoxide from vehicles causes these problems by reducing `O_(2)`-carrying capacity of haemoglobin.

A

Both statements 1 and 2 are correct.

B

Statement 1 is correct but statement 2 is incorrect

C

Statement 1 is incorrect but statement 2 is correct.

D

Both statements 1 and 2 are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
A
50% carbon monoxide emissions are from automobiles. Normally CO has a brief residence in atmosphere and gets oxidised to `CO_(2)`. However, in congested and closed areas it proves quite harmful. Carbon monoxide combines with haemoglobin produces carboxyhaemoglobin of COHb. At 50 ppm, CO converts 7.5 % of haemoglobin into carboxyhaemoglobin with 8 hours. It impairs oxygen transport resulting in giddiness, headache, decreased vision, cardiovascular malfunction and asphxia.
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