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Which of the following alkane cannot be made in good yield by wurtz reaction ?
A) n- Butane
B) n- Hexane
C) 2,3 -Dimethyl butane
D) n-Heptane
NEET 2020
Answers
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25
(D) n-Heptane
- Wurtz reaction is a reaction in which alkyl halide is converted to alkane by Na/ether.
- It is limited to the synthesis of symmetrical alkanes.
- n-heptane is the straight-chain alkane with the chemical formula H₃C(CH₂)₅CH₃ or C₇H₁₆.
- It is one of the main components of gasoline.
- When used as a test fuel component in anti-knock test engines, a 100% heptane fuel is the zero point of the octane rating scale.
- Two different alkyl halides can be used in Wurtz reaction.
- Wurtz reaction is a coupling reaction.
- The alkyl groups of reactants get doubled on coupling.
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5
Answer:
D)n-Heptane
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