What is 'Power alcohol'?

1

(a)

A mixture of absolute alcohol (20%),petrol (80%) and some benzene as a cosolvent is called power alcohol.

A little water is there on the inner surface of a conical flask. Can this water be removed by shaking with ether? Answer with reason.

1

(a)

No,because water does not dissolves in ether.Instead alcohol can be used to remove water since water dissolves in alcohol.

Why are higher ethers insoluble in water?

1

(a)

Higher ethers are insoluble in water because due to the bigger size of the alkyl groups,the oxygen atom in ethers fails to form intermolecular H-bonds with water.

Identify the allylic alcohols in the following examples.

1

(a)

Only above two (ii and vi) are allylic alcohols

Write the IUPAC name of the compound given below:

1

(a)

The IUPAC name of the given compound is