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Q. A mixture of three alkyl chloride $CH_{3}Cl,CH_{3}CH_{2}Cl,CH_{3}CH_{2}CH_{2}Cl$ under goes Wurtz coupling reaction. The product contains:

NTA AbhyasNTA Abhyas 2020Hydrocarbons

Solution:

Five products Ethane, Propane, butane, pentane, hexane will be formed


The possible cases will be:

$\left(I\right) \, 2CH_{3}Cl\overset{N a}{ \rightarrow }\underset{e t h a n e}{\underbrace{C H_{3} - C H_{3}}}$

$\left(I I\right) \, 2CH_{3}CH_{2}Cl\overset{N a}{ \rightarrow }\underset{b u tan e}{\underbrace{C H_{3} C H_{2} - C H_{2} C H_{3}}}$

$\left(I I I\right) \, 2CH_{3}CH_{2}CH_{2}Cl\overset{N a}{ \rightarrow }\underset{h e x a n e}{\underbrace{C H_{3} C H_{2} C H_{2} - C H_{2} C H_{2} C H_{3}}}$

$\left(I V\right) \, CH_{3}Cl+CH_{3}CH_{2}Cl\overset{N a}{ \rightarrow }\underset{p r o p a n e}{\underbrace{C H_{3} - C H_{2} C H_{3}}}$

$\left(V\right) \, CH_{3}CH_{2}Cl+CH_{3}CH_{2}CH_{2}Cl\overset{N a}{ \rightarrow }\underset{p e n tan e}{\underbrace{C H_{3} C H_{2} - C H_{2} C H_{2} C H_{3}}}$

$\left(V I\right) \, CH_{3}CH_{2}CH_{2}Cl+CH_{3}Cl\overset{N a}{ \rightarrow }\underset{b u tan e}{\underbrace{C H_{3} C H_{2} C H_{2} - C H_{3}}}$

In II and VI products are same so total number of products are 5