Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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41.

Which of the following is an ester ?

  • Coconut oil

  • Kerosene oil

  • Soap

  • Glycerine


A.

Coconut oil

Fats and oils are esters of glycerol with higher fatty acids .Hence , coconut oil is an ester .


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42.

Identify the 'C' in the reaction :

RNH2 HNO2 A + B + C

  • NH3

  • O2

  • N2

  • CO2


43.

Hydrolysis of lactose with dilute acid yields :

  • D - glucose + D - glucose

  • D - glucose + D - galactose

  • D - glucose + D - fructose

  • D - galactose + D - fructose


44.

Which is used to obtain salicylic acid from phenol ?

  • CCl4

  • CHCl3

  • CH3COOH

  • COCH3


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45.

Dehydration of glycerol produces :

  • propanone

  • allyl alcohol

  • glycol

  • acrolein


46.

CH3Br + KCN (alco.)  X Na + C2H5OHReduction Y

What is Y in the series ?

  • CH3CN

  • C2H5CN

  • C2H5NH2

  • CH3NH2


47.

2 - pentanone and 3 - pentanone can be distinguished by :

  • cannizaro's reaction

  • iodoform reaction

  • aldol condensation

  • Clemmensen's reduction


48.

Proteins are :

  • polypeptides with low molecular weights

  • polypeptides with high molecular weights

  • polymers of amides

  • polymers of secondary amines


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49.

Which will give cannizaro reaction ?

  • Cl3C-CHO

  • C6H5CHO

  • (CH3)3-C-CHO

  • All of the above


50.

CH3CHI2 KCN H2O ,  ?

Here the end product would be :

  • 2 - cyano propionic acid

  • ethane - l , 1 - dicarboxylic acid

  • 2 - methyl ethanoic acid

  • propionic acid


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