Question

Alkane can be prepared by

• A. at action of Grignard's reagent with water
• B. the reduction of alkyl halide with $H_{2}$ in presence of nickel
• C. the action of ethereal of alkyl halide with sodium metal
• D. all the above

Answer 1

Answer: (D)

A. $RMgBr+HOH \rightarrow RH+MgBr\left(\right.OH\left.\right)$

B. $R-X+H_{2}\overset{N i}{ \rightarrow }RH+HX$

C. $\text{R} - \text{X} \, \text{+} \, \text{2Na} \, \text{+} \, \text{X} - \text{R} \overset{\text{dry} \, \text{ether}}{ \rightarrow } \text{R} - \text{R} \, \text{+} \, \text{2NaX}$

All these methods can be used to prepare alkane.