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Alcohols, Phenols and Ethers

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Q.

Which of the following will react fastest with Lucas reagent?

Q.

Identify Z in the following series:

Q.

HBr reacts fastest with:

Q.

Three compounds I, II, and III are given.

The compounds (A), (B) and (C), respectively, are:

Q. what is proof?

Proof is defined as ……. The percentage by volume of alcohol in ethanol–water mixture.

Q. Diethylene glycol is obtained by heating glycol with?

Conc. H3PO4

Q. Why THF is used in Oxymercuration demercuration process?

Tetrahydrofuran, a cyclic ether, is usually used as a solvent for this first step in the reaction because it can form a complex with the borane that gives the boron atom a complete octet (boron only has 6 valence electrons when it is in pure borane, which makes it highly unstable.)

Q. How does Alumina (Al2O3) soaks water from the compound to make the reaction in most of the cases when we use Alumina as a deliquicent?

Alumina being a good adsorbent provides surface area to alcohol molecules to interact.with this the reaction requires less activation energy thus acting like catalyst it causes dehydration.

Q. what does dehydrations of alcohols means?

dehydration of alcohol means removal of OH and H as H2O from alcohol compound, which will result in formation of double bond