What is the occupational disease caused by inhalation of black dust?

The correct answer is pneumoconiosis.

The occupational disease is the disease, which is acquired through the occupation.

The coal workers, especially those who work in mines are regularly in contact with the coal dust, which is also called as black dust. This black dust can accumulate inside the lungs of the coal workers.

The accumulation of the black dust causes the pneumoconiosis. It can lead to coughing, shortness of breath and fibrosis of lungs.

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hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure