Question

The disease caused by the high concentration of hydrocarbon pollutants in atmosphere is/are:
A.silicosis
B.TB
C.cancer
D.asthma

Answer 1

:Hint:An organic compound consisting only of hydrogen atoms and carbon atoms is known as an hydrocarbon. The group fourteen hydrides are specimens of the hydrocarbons.

Complete answer:
Hydrocarbons are colourless compounds. They possess weak odour. They are hydrophobic in nature, that is they will not be able to mix with water. The natural sources of hydrocarbons are ethylene, isoprene and monoterpenes. They usually appear from the emissions of vegetation.
There are three types of hydrocarbons which are as follows,
Saturated hydrocarbons: The hydrocarbons containing only single bonds between all their carbon atoms are known as saturated hydrocarbons. Alkanes and cycloalkanes are saturated hydrocarbons.
Unsaturated hydrocarbons: The hydrocarbons containing one or more double or triple bonds within their structures are known as unsaturated hydrocarbons. Those with double bonds are known as alkenes whereas those with triple bonds are known as alkynes.
Aromatic hydrocarbons: The hydrocarbons containing one or more aromatic rings are known as aromatic hydrocarbons. They are also known as arenes.
Along with the benefits, there are many ill effects of hydrocarbons too. One such example is that aromatic compounds like benzene and certain rare polycyclic aromatic compounds are carcinogenic which means they can cause cancer.
Hence the high concentration of hydrocarbon pollutants in air can cause cancer.

Therefore, the correct answer is option C.
Note:
Hydrocarbons are released in air because of the incomplete combustion of fuel utilized in automobiles. They cause aging and shading of leaves in plants.Hydrocarbons are majorly used as the source of combustible fuel source. They are also beneficial in production of many consumer products. They are the starting materials for the synthesis of commercially important organic chemicals which are used to manufacture plastics, synthetic rubbers, synthetic fibres, fertilizers, etc.