How many electrons are there in benzene to form delocalized electronic cloud
Correct answer: C. Six
- A. Three
- B. Four
- C. Six
- D. Eight
Explanation
Benzene is a planar molecule with a hexagonal ring of carbon atoms and alternating double bonds. The delocalized electron model in benzene involves the six pi electrons from the double bonds forming a delocalized electron cloud above and below the carbon atom plane, creating aromaticity. Options A and B are incorrect as they do not provide enough pi electrons for the cloud. Option D is incorrect as it suggests additional pi bonds beyond what is needed for benzene's aromaticity.
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: