Question

# By which of the following reagents, butanoic acid can be converted into butane?

A
Red P/HI
B
NaOH/CaO
C
CH3MgBr
D
All of these

Solution

## The correct option is B Red P/HIButanoic acid can be converted to butane by heating with hydriodic acid $$(HI)$$ and red phosphorus $$(Red\ P)$$. $$\underset{\ \\ butanoic\ acid}{CH_3-CH_2-CH_2-COOH}+6HI\xrightarrow[150^oC]{Red\ P}\underset{\ \\ butane}{CH_3-CH_2-CH_2-CH_3}+2H_2O+3I_2$$$$\mathbf{Hence\ the\ correct\ answer\ is\ option\ (A)}$$Chemistry

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