Discuss the preparation of alkanes by Wurtz reaction. What is the limitation of the reaction?

Question

Discuss the preparation of alkanes by Wurtz reaction. What is the limitation of the reaction?

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

Define the following terms with example. A. Wurtz Reaction. B. Chain Isomerism. C. Dihedral Angle.

1 Answers 4 Views

Why do the C-C bonds rather than C-H bonds break during cracking of alkanes?

1 Answers 4 Views

Give reason for the following: The boiling points of alkanes decreases with branching.

1 Answers 4 Views

Give reason for the following: Straight chain alkanes possess higher boiling points than the corresponding branched chain isomers.

1 Answers 4 Views

Arrange the following in order of decreasing reactivity towards alkanes. HCl, HBr, HI, HF

1 Answers 4 Views

What are alkanes? Why are they called paraffins?

1 Answers 4 Views

What are alkanes? Why are they called paraffins?

1 Answers 4 Views

Assertion: Among the isomeric alkanes, the branched chain isomers have lower boiling point than the straight chain isomers.

1 Answers 4 Views

Assertion (A). Alkanes containing more than three carbon atoms exhibit chain isomerism. Reason (R). All carbon atoms in alkanes are sp hybridize.

1 Answers 5 Views

Which limitation of planning suggests that the employees stop thinking and become the blind followers of a plan?

1 Answers 5 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Wurtz synthesis: Higher alkanes are prepared by heating an alkylhalide (RX) with sodium metal in dry ether solution.

R-X +2Na + XR dry ether -------> R-R + 2NaX

CH₃Br + 2Na + BrCH₃ dry ether -------> CH₃CH₃ + 2NaBr

Limitations: - use of two different alkyl holds in Wurtz Rxn always leads to a mixture of alkanes; those are difficult to separate because of little B.pt difference. So only symmetrical alkanes can be prepared by this method.