281.

A compound, containing only carbon, hydrogen and oxygen, has a molecular weight of 44. On complete oxidation it is converted into a compound of molecular weight 60. The original compound is

• an aldehyde

• an acid

• an alcohol

• an ether

An example for a saturated fatty acid, present in nature is

• oleic acid

• linoleic acid

• linolenic acid

• palmitic acid

Identify the product Y in the following reaction sequence:

• pentane

• cyclobutane

• cyclopentane

• cyclopentanone

Which of the following compound is expected to be optically active?

• (CH₃)₂CHCHO

• CH₃CH₂CH₂CHO

• CH₃CH₂CHBrCHO

• CH₃CH₂CBr₂CHO

In the reaction, $\mathrm{R}-\mathrm{X} \stackrel{\mathrm{alcoholic} \mathrm{KCN}}{\to } \mathrm{A} \stackrel{\mathrm{dilute} \mathrm{HCl}}{\to } \mathrm{B}$

The product B is :

• alkyl chloride

• aldehyde

• carboxylic acid

• ketone

By heating phenol with chloroform in alkali, it is converted into :

• salicylic acid

• salicylaldehyde

• anisole

• phenyl benzoate

When a mixture of calcium benzoate and calcium acetate is dry distilled, the resulting compound is :

• acetophenone

• benzaldehyde

• benzophenone

• acetaldehyde

The chemical name of anisole is

• ethanoic acid

• methoxy benzene

• propanone

• acetone

Anisole can be prepared by the action of methyl iodide on sodium phenate. The reaction is called

• Wurtz 's reaction

• Williamson's reaction

• Fittig's reaction

• Etard's reaction

The reagent used in Clemmensen's reduction is

• conc. H₂SO₄

• Zn-Hg conc. HCl

• aq. KOH

• alc. KOH