Preparation and Properties of Alkenes
Chemistry ⇒ Carbon and Organic Chemistry
Preparation and Properties of Alkenes starts at 11 and continues till grade 12.
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Describe the mechanism of dehydration of ethanol to form ethene using concentrated H2SO4 as a catalyst.
Explain the difference between cis and trans isomers of alkenes.
Explain why alkenes can show geometrical isomerism but alkanes cannot.
Explain why alkenes undergo electrophilic addition reactions more readily than alkanes.
Name the product formed when 2-bromopropane is treated with alcoholic KOH.
State Markovnikov’s rule as applied to the addition of HX to alkenes.
State Saytzeff’s rule as applied to the dehydrohalogenation of alkyl halides.
What is the major product when 2-chlorobutane is heated with alcoholic KOH?
Which of the following alkenes will give only one product on reaction with HBr?
(1) Propene
(2) 1-Butene
(3) 2-Butene
(4) 2-Methylpropene
Which of the following is a test for unsaturation in organic compounds?
(1) Tollen’s test
(2) Baeyer’s test
(3) Iodoform test
(4) Lucas test
Which of the following is NOT a method for the preparation of alkenes?
(1) Dehydration of alcohols
(2) Dehydrohalogenation of alkyl halides
(3) Hydrogenation of alkynes
(4) Hydrohalogenation of alkenes
Which of the following is NOT a property of alkenes?
(1) Undergo addition reactions
(2) Are saturated hydrocarbons
(3) Can show cis-trans isomerism
(4) React with bromine water
Alkenes are also known as ________ hydrocarbons.
Fill in the blank: The addition of water to an alkene in the presence of acid is called ________.
The general formula for alkenes is ________.
The reaction of ethene with cold, dilute KMnO4 results in the formation of ________.
Alkenes decolorize bromine water. Is this statement true or false?
Is the following statement true or false? Alkenes can be prepared by the dehydrohalogenation of alkyl halides using alcoholic KOH.
State whether the following statement is true or false: Alkenes are insoluble in water but soluble in organic solvents.
State whether the following statement is true or false: Alkenes are more reactive than alkanes towards electrophilic addition reactions.
