Question

For production of alkene, alcohol is heated in presence of:

• A. conc. $H_{2}S{O}_4$
• B. conc. $H_{3}P{O}_4$
• C. anhydrous $ZnC{l}_2$
• D. all of the above

Answer 1

Answer: (D)

all of the above

Alkene is prepared by heating an alcohol with concentrated mineral acid, such as concentrated $H_{2}S{O}_4$ or concentrated $H_{3}P{O}_4$. Anhydrous zinc chloride can also be used as a dehydrating agent.