A hydrocarbon, which is liquid at room temperature, decolourizes aqueous bromine. Which could be the molecular formula of the compound?
Correct answer: D. C10H20
- A. C2H2
- B. C2H4
- C. C7H16
- D. C10H20
Explanation
Alkenes and Alkynes can decolorize bromine. so, the molecules must be either an alkyne or alkene. Since C5-C15 alkenes or C5-C12 alkynes are only liquids at room temperature, the molecules must fall within this range. Among the options Decene is an alkene with 10 carbons so can decolorize bromine as well as is a liquid at room temperature.
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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.
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