Question

Which following reagent is used to obtain alkene from alcohol?

विकल्प

• Na-Hg/H₂O

• Acidic KMnO₄

• P₂O₅

• LiAlH₄

Answer 1

P₂O₅ 

Explanation:

Conversion of alcohol into alkene is a dehydration reaction.

P₂O₅ is a dehydrating agent.

\[\ce{C2H5OH ->[P2O5][\Delta] H2C = CH2}\]