Chapter 12.18, Problem 4QQ

Interpretation Introduction

Interpretation:

Freon is a halogenated methane which contains what halogen atoms has to be chosen from the given set of options.

Concept Introduction:

The derivative of alkane with halogen instead of one or more hydrogen atoms is known as halogenated alkane.  If the same is present in cycloalkane, then it is known as halogenated cycloalkane.  They are product of reaction between alkane/cycloalkane with halogens.

Halogenation:

Halogenation is a chemical reaction between a substance and halogen.  The product of halogenation reaction is that one or more halogens are incorporated into molecules of the substance.  Halogenation of hydrocarbon gives hydrocarbon derivatives as product where halogen atoms are substituted instead of hydrogen atoms.

Halogenation reaction of alkane is an example of substitution reaction.  This is a reaction where a part of reacting molecule replaces an atom or group of atoms in hydrocarbon or hydrocarbon derivative.

Chlorofluorocarbons:

They have the general molecular formula as ${\text{CCl}}_{\text{x}}{\text{F}}_{\text{4-x}}$.  The trade name of chlorofluorocarbon is Freon.  The halogens that are present in Freon is chlorine and fluorine.