The reaction ,

CH₃-CO-OCH₃ + C₂H₅OH $\stackrel{{\mathrm{H}}^{+} \mathrm{or} {\mathrm{OH}}^{-}}{\to }$ CH₃-CO-OC₂H₅ + CH₃OH is called :

• Perkin's reaction

• Claisen Schmidt reaction

• Esterification

• Trans-esterification

The reaction ,

2CH₃-CO-OC₂H₅ $\stackrel{{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{ONa}}{\to }$ CH₃-CO-CH₂-CO-OC₂H₅ + C₂H₅OH is called :

• Etard reaction

• Perkin's reaction

• Claisen condensation

• Claisen Schmidt reaction

Formaldehyde reacts with ammonia to give urotropine .The formula of urotropine is :

• (CH₂)₆N₄

• (CH₂)₄N₃

• (CH₂)₆N₆

• (CH₂)₃N₃

CH₆CO₅NHCH₃ can be converted into C₆H₅CH₂NHCH₃ by

• NaBH₄

• H₂-Pd/C

• LiAl₄

• Zn-Hg/HCl

The cyanohydrin of which compound, gives lactic acid on hydrolysis ?

• HCHO

• CH₃CHO

• C₆H₅CHO

• CH₃COCH₃

The intermediate formed in aldol condensation is :

• aldol

• carbanion

• alcohol

• alpha-hydrogen ester

The compound most suitable for the preparation of cyanohydrin is :

• C₂H₅COOH

• C₆H₅NH₂

• C₂H₅COC₂H₅

• C₂H₅-C₂H₅

CH₃COCH₃ car be converted to CH₃CH₂CH₃ by the action of :

• HIO₃

• HNO₃

• HI

• H₃PO₃

1069.

Which of the following has the highest dipole moment ?

• (H)₂-C=O

• (CH₃)₂-C=C-(H)₂

• CH₃-CH=CH-CH₃

• CH₃-C(Cl)=C(Cl)-CH₃

The reagent used for the separation of acetaldehyde from acetophenone is

• NaHSO₃

• C₆H₅NHNH₂

• NH₂OH

• NaOH-I₂