Moderate

Alkanes containing _ carbon atoms are waxy solids.

Correct answer: C. 18 or more.

  • A. Up to 4.
  • B. 5 to 17.
  • C. 18 or more.
  • D. None of these.

Explanation

Alkanes containing 18 or more carbon atoms are waxy solids. This is due to the increased molecular weight and the closer packing of molecules as the carbon chain length increases. Options A and B are incorrect as alkanes with up to 17 carbon atoms are not necessarily waxy solids. Option D is also incorrect as Option C provides the correct information.

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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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