91.

The strongest acid among the following compound is :

• HCOOH

• CH₃CH₂CH(Cl)COOH

• ClCH₂CH₂CH₂COOH

• CH₃COOH

Which compound forms urotropine when reacts with NH₃ ?

• HCHO

• CH₃CHO

• CH₃COCH₃

• C₆H₅OH

Which of the following compound will not show aldol condensation ?

• CH₃COCH₃

• HCHO

• CH₃CHO

• CH₃CH₂CHO

Which characteristic property is not shown by carboxylic acid group ?

• Alkyl group

• -COOH group

• ketonic group

• none of these

Which of the following statement is correct for ketone and acetaldehyde ?

• Both reacts with HCN and forms hydrine

• Both reacts with NaOH and forms polymer

• both forms acid on oxidation and reduction

• Both forms alcohol on reduction and oxidation

Aldehyde and ketone can be differentiated by :

• sodium bi sulphite

• Fehling solution

• ammonia

• sulphuric acid

The product of the reaction between chloral and NaOH is :

• CH₃COOH

• CH₃CHO

• CHCl₃

• CHCl

The correct reactivity otder is :

• CH₃CHO > (CH₃)₂CO > CH₃COC₂H₅

• (CH₃)₂CO > CH₃CHO > CH₃COC₂H₅

• CH₃CHO > CH₃COC₂H₅ > (CH₃)₂CO

• CH₃COC₂H₅ > CH₃CHO > (CH₃)₂CO

The main product of heating of sodium formate at 360^o C is :

• CO

• sodium oxalate

• Na₂CO₃

• None of the above

Which does not give Cannizzaro reaction?

• HCHO

• ${\mathrm{C}}_6{\mathrm{H}}_5\underset{\mathrm{O}}{\underset{\parallel }{\mathrm{C}}}-\mathrm{CHO}$

• Ph-CHO

• Ph-CH₂-CHO