51.

Which characteristic property is not shown by carboxylic acid group ?

• Alkyl group

• -COOH group

• ketonic group

• none of these

The product formed by the reaction between acetylene and HOCl :

• ethylene chloride

• vinyl chloride

• dichloro acetaldehyde

• ethyledene chloride

The example of condensation polymerisation is :

• formaldehyde - metaformaldehyde

• acetaldenyde - para acetaldehyde

• acetone - mesityl oxide

• ethene - polyethene

The product of reaction between chloroform and acetone is used as :

• insecticide

• analgesic

• hypnotic

• war gas

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

• CO

• sodium oxalate

• Na₂CO₃

• None of the above

The IUPAC name ofis :

• 1 , 2 , 3 - propane tri-ol

• 3 - hydroxy butanoic acid

• 1 , 2 - ethane di-ol

• 3 - methyl butanol - 1

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

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