Question

When a tertiary alcohol ($C_4​H_{10}​O$) reacts with 20% $H_3​PO_4$​ at 358 K, it gives a compound ($C_4​H_8​$) as the major product. The IUPAC name of this compound is:

• A. But-1-ene
• B. But-2-ene
• C. Cyclobutane
• D. 2-Methylpropene

Hint:

The tertiary alcohol dehydrates under acidic conditions to yield 2-methylpropene () as the major product.

Answer 1

The Correct Option is D

The tertiary alcohol undergoes dehydration under acidic conditions to form 2-methylpropene (C4​H8​) as the major product. This involves eliminating water from the alcohol.