Question

Name the product of coal which is a thick black liquid having an unpleasant smell.

Answer 1

Hint : To answer this question, we first need to understand what coal is. Coal is a flammable black or brownish-black sedimentary rock that is found in the form of coal seams. Coal is mostly composed of carbon, with little amounts of additional elements such as hydrogen, Sulphur, oxygen, and nitrogen. Coal is used in the production of iron and steel, as well as other industrial operations.

Complete Step By Step Answer:
Different products of coal –
Coke – Coke is a grey, hard, and porous fuel with a high carbon content and minimal impurities that is produced by distilling coal or oil in the absence of air. It is a vital industrial commodity that is mostly used in the smelting of iron ore, but it is also utilized as a fuel in stoves and forges where air pollution is a concern.
Coal Tar- Coal tar is a thick, dark liquid that is produced as a by-product of the coal-to-coke and coal-to-gas conversion process. It has medical and industrial applications. It is a topical medicine used to treat psoriasis and seborrheic dermatitis on the skin. It can be combined with UV light therapy for better results.
Coal Gas- Coal gas is a flammable gaseous fuel derived from coal that is delivered to customers via a piped system. When coal is heated rapidly in the absence of air, it produces it. Town gas is a broader phrase that refers to gaseous fuels that are made for sale to consumers and municipalities.
As discussed above about the different products of coal we came across a result that the coal product which is thick black liquid having an unpleasant smell is Coal Tar
So, the final answer is Coal Tar.

Note :
The most significant disadvantage of coal is its poor environmental impact. Coal-fired power stations contribute significantly to air pollution and greenhouse gas emissions. Coal combustion emits Sulphur dioxide, a hazardous chemical connected to acid rain, in addition to carbon monoxide and heavy metals like mercury.