31.

In a set of reactions acetic acid yielded a product D.

${\mathrm{CH}}_3\mathrm{COOH} \stackrel{{\mathrm{SOCl}}_2}{\to }\mathrm{A} \underset{\mathrm{anhy}. {\mathrm{AlCl}}_3}{\overset{\mathrm{Benzene}}{\to }}\mathrm{B} \stackrel{\mathrm{HCN}}{\to }\mathrm{C}\stackrel{{\mathrm{H}}_2\mathrm{O}}{\to }\mathrm{D}$

The structure of D would be

• 

• 

• 

• 

The alcohol having molecular formula C₄H₉OH, when shaken with a mixture of anhydrous ZnCl₂ and cone. HCl gives an oily layer product after five minutes. The alcohol is

• H₃C-(CH₂)₃-OH

• (CH₃)₂CH-CH₂OH

• (CH₃)₃C-OH

• H₃C-CH(OH)CH₂-CH₃

p-toluidine and benzyl amine can be distinguished by

• Sandmeyer's reaction

• Dye test

• Molisch test

• Gattermann reaction

Glycerine is used as a preservative for fruits and eatable because

• it makes them sweet

• it acts as an insecticide

• it keeps the food moist

• All of the above

 This reaction is called

• Reimer-Tiemann reaction

• Lederer-Manasse reaction

• Sandmeyer reaction

• Kolbe's reaction

${\mathrm{CH}}_3-\mathrm{CO}-{\mathrm{CH}}_3 \stackrel{{\mathrm{SeO}}_2}{\to } \mathrm{X} + \mathrm{Se} + {\mathrm{H}}_2\mathrm{O}: \mathrm{X} \mathrm{is}$

• 

• 

• 

• None of the above

Which of the following will give Cannizzaro reaction?

• CH₃CHO

• CH₃COCH₃

• (CH₃)₃C-CHO

• CH₃CH₂CHO

The secondary structure of a protein refers to

• alpha helical backbone

• hydrophobic interactions

• sequence of alpha amino acid

• fixed configuration of the polypeptide backbon

Self condensation of two moles of ethyl acetate in the presence of sodium ethoxide after acidification yield

• acetic acid

• acetoacetic ester

• ethyl propionate

• ethyl butyrate

Which one of the following will be most basic?

• Aniline

• p-methoxyaniline

• p-methyl aniline

• Benzylamine