The first three members of a homologous series are $C H_{4}, C_{2} H_{6}, C_{3} H_{8}$ . The fifth member of this series will be:

C_{5} H_{10}

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C_{5} H_{14}

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C_{5} H_{12}

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C_{5} H_{8}

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Solution

The correct option is B $C_{5} H_{12}$
General formula of homologous series is $C_{n} H_{2 n + 2}$ .
First member is methane i.e. $C H_{4}$
Second member is ethane i.e. $C_{2} H_{6}$
Third member is propane i.e. $C_{3} H_{8}$
Forth member is butane i.e. $C_{4} H_{10}$
Similarly, fifth member is pentane i.e $C_{5} H_{12}$

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Select the option that will complete the homologous series given below.

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The first three members of a homologous series are CH4,C2H6,C3H8. The fifth member of this series will be:

The correct option is B C5H12General formula of homologous series is CnH2n+2.First member is methane i.e. CH4Second member is ethane i.e. C2H6Third member is propane i.e. C3H8Forth member is butane i.e. C4H10Similarly, fifth member is pentane i.e C5H12

The first three members of a homologous series are $C H_{4}, C_{2} H_{6}, C_{3} H_{8}$ . The fifth member of this series will be: