Hydrocarbons: Carbon and Hydrogen Containing Compounds

In this quiz, you will find questions related to hydrocarbons (class of organic compounds made up of only hydrogen and carbon), their properties, their reactions with other elements, etc.

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Alkenes are not called olefins.

True False

The product obtained on heating 2-Bromopentane with potassium ethoxide in ethanol is

1-pentene 2-cis-pentene trans-2-pentene 2-ethoxy pentane

Which one of the following halide can be used in the Friedel-Crafts reaction?

Isopropyl chloride Bromobenzene Chlorobenzene Chloroethene

Which among the following reagent can be used to distinguish between CH2BrCH=CH2 from CH3CH=CHBr?

Br2/CCl4 cold KMnO4 AgNO3/C2H5OH Ag(NH3)2OH

The compound C3H4 has a triple bond, which is indicated by its reaction with

Bromine water Bayers reagent Fehling solution Ammonical silver nitrate

The compound C3H4 has a triple bond, which is indicated by its reaction with

Bromine water Bayers reagent Fehling solution Ammonical silver nitrate

Hydrocarbon containing following bond is most reactive

C ≡ C C = C C-C All of these

Pure methane can be prepared by

Soda lime decarboxylation Kolbes electrolytic method Wurtz reaction Reduction with H2

The order of decreasing reactivity towards an electrophilic reagent, for the following : (i) Benzene (ii) Toluene (iii) Chlorobenzene (iv) Phenol would be:

(i) > (ii) > (iii) > (iv) (ii) > (iv) > (i) > (iii) (iv) > (iii) > (ii) > (i) (iv) > (ii) > (i) > (iii)

Pure methane can be produced by

Soda-lime decarboxylation Reduction with H2 Kolbe’s electrolytic method Wurtz reaction

Which of the following statements is false for isopentane

It has a carbon which is not bonded to hydrogen It has one CH group It has three CH3 groups It has one CH2 group

The number of primary, secondary and tertiary carbons in 3, 4-dimethylheptane are respectively

4, 3 and 2 4, 2 and 3 2, 3 and 4 3, 4 and 2

Ethene is prepared from chloroethane this is an example of a reaction __________

From alkynes

Removal of vicinal dihalides

Acidic dehydrogenation

Dehydrohalogenation

Alkene __________ in the physical properties of alkanes.

There is no comparison

Differ completely

Differ in a few aspects

Same as

Alkenes show __________ isomerism.

Only structural

Only geometrical

Both geometrical and structural

Neither geometrical nor structural

Addition reaction of hydrogen Bromide to the unsymmetrical alkene follows __________

Anti markovnikov’s rule

Markovnikov’s rule

Kharish effect

Peroxide effect

Choose the process by which liquid hydrocarbons can be converted to gaseous hydrocarbons

Hydrolysis

Oxidation

Cracking

Distillation under reduced pressure

Isopropyl iodide is formed after reaction of propene with HI, this is due to

More stable free radical

Momolysis

More stable carbanion

More stable carbocation

Methane, ethane and propane are said to form a homologous series because all are

Differ from each other by a CH2 group

Aliphatic compounds

Saturated compounds

Hydrocarbons

Two adjacent members of a homologous series have

All the above

Same general method of preparation

A different of 14 amu in molecular mass

A difference of CH2 in their structure

Quiz/Test Summary
Title: Hydrocarbons: Carbon and Hydrogen Containing Compounds
Questions: 20
Contributed by:
james