Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

51.

Which characteristic property is not shown by carboxylic acid group ?

  • Alkyl group

  • -COOH group

  • ketonic group

  • none of these


52.

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

  • insecticide

  • analgesic

  • hypnotic

  • war gas


53.

The product formed by the reaction between acetylene and HOCl :

  • ethylene chloride

  • vinyl chloride

  • dichloro acetaldehyde

  • ethyledene chloride


54.

The IUPAC name of  is :

  • 1 , 2 , 3 - propane tri-ol

  • 3 - hydroxy butanoic acid

  • 1 , 2 - ethane di-ol

  • 3 - methyl butanol - 1


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55.

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


56.

Aldehyde and ketone can be differentiated by :

  • sodium bi sulphite

  • Fehling solution

  • ammonia

  • sulphuric acid


57.

The product of the reaction between chloral and NaOH is :

  • CH3COOH

  • CH3CHO

  • CHCl3

  • CHCl


58.

The correct reactivity otder is :

  • CH3CHO > (CH3)2CO > CH3COC2H5

  • (CH3)2CO > CH3CHO > CH3COC2H5

  • CH3CHO > CH3COC2H5 > (CH3)2CO

  • CH3COC2H5 > CH3CHO > (CH3)2CO


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59.

The example of condensation polymerisation is :

  • formaldehyde - metaformaldehyde

  • acetaldenyde - para acetaldehyde

  • acetone - mesityl oxide

  • ethene - polyethene


C.

acetone - mesityl oxide

Acetone H2SO4Conc. masitylene


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60.

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

  • CO

  • sodium oxalate

  • Na2CO3

  • None of the above


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