The oxidation of benzene by V₂O₅ in the presence of air produces

• benzoic anhydride

• maleic anhydride

• benzoic acid

• benzoic acid

Acetamide is treated with the following reagents separately. Which one of these would yield methylamine? 

• NaOH - Br₂

• Sodalime

• Hot conc. H₂SO₄

• Hot conc. H₂SO₄

Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is 

• CH₃COOCH₃

• CH₃CONH₂

• CH₃COOCOCH₃

• CH₃COOCOCH₃

914.

Trichloroacetaldehyde, CCl₃CHO reacts with chlorobenzene in presence of sulphuric acid and produces

• 
• 
• 
• 

H₂COH. CH₂OH on heating with periodic acid gives

• 2CO₂

• 2HCOOH

• 
• 

Propionic acid with Br₂-P yields a dibromo product. Its structure would be

• CH₂Br - CHBr -COOH

• 

• CH₂-Br-CH₂-COBr

• CH₂-Br-CH₂-COBr

Acetophenone when reacted with a base, C₂H₅ONa, yields a stable compound which has the structure

The relative reactivities of acyl compounds towards of nucleophilic substitution are in the order of 

• Acyl chloride> Acid anhydride> Ester> Amide

• Ester > Acyl chloride> Amide > Acid anhydride

• Acid anhydride > Amide > Ester> Acyl chloride

• Acyl chloride > Ester > Acid anhydride > Amide

Which of the following represents the correct order of the acidity in the given compounds?

• H₃CCOOH > BrCH₂COOH > ClCH₂COOH > FCH₂COOH

• FCH₂COOH > CH₃COOH >BrCH₂COOH > ClCH₂COOH

• BrCH₂COOH > ClCH₂COOH > FCH₂COOH >CH₃COOH

• BrCH₂COOH > ClCH₂COOH > FCH₂COOH >CH₃COOH

Reduction of aldehydes and ketones into hydrocarbons using zinc amalgam and conc. HCl is Called:

• Clemmensen reduction

• Cope reduction

• Dow reduction

• Dow reduction