Coal is produced after a long time of decay:
Correct answer: C. wood
- A. animals
- B. fossils
- C. wood
- D. all of the above
Explanation
Wood is the primary source material for coal. Decaying woody tissues from ancient forests and swamps undergo the necessary chemical and physical changes to become coal over long periods. Coal is formed from the remains of plant material, mainly trees and other vegetation, that undergo a process called coalification over an extended period of time. The process involves the decomposition and transformation of plant matter under conditions of heat and pressure, eventually forming peat, lignite, bituminous coal, and anthracite
Last updated
About Chemistry of Hydrocarbons
Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.
Practise Chemistry of Hydrocarbons
1,091 free Chemistry of Hydrocarbons MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
1-Butene and two Butene are showing which type of isomerism?
1-butyne and 2-butyne can be identified by using which of the following reagents
2-chloropropane is heated with Na metal product is 2,3-dimethyl butane, reaction is:
2-methyl propene is isomeric with but-1-ene. They can be distinguished by:
2-methyl propene is isomeric with butene-1. They can be distinguished by: