The reaction C2H5ONa + C2H5I → C2H5OC2H5 + NaI is known

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 Multiple Choice QuestionsMultiple Choice Questions

641.

Antiseptic chloroxylenol is

  • 4-chloro-3, 5-dimethyl phenol

  • 3-chloro-4, 5-dimethyl phenol

  • 4-chloro-2, 5-dimethyl phenol

  • 5-chloro-3,4-dimethyl phenol


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642.

The reaction C2H5ONa + C2H5I → C2H5OC2H5 + NaI is known as:

  • Kolbe's synthesis

  • Wurtz's synthesis

  • Williamson's synthesis

  • Grignard's synthesis


C.

Williamson's synthesis

Williamson's synthesis : It involves the heating of alkyl halidewith sodium or potassium alkoxides. This reaction is used for the preparation of ethers e.g.,

C2H5ONa + C2H5I → C2H5OC2H5 + NaI

 


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643.

Denatured alcohol is

  • ethanol + methanol

  • rectified spirit + methanol + naphtha

  • undistilled ethanol

  • rectified spirit


644.

Which of the following does not give benzoic acid on hydrolysis?

  • Phenyl cyanide

  • Benzoyl chloride

  • Benzyl chloride

  • Methyl benzoate


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645.

Waxes are esters of

  • glycerol

  • long chain alcohols

  • glycerol and fatty acid

  • long chain alcohols and long chain fatty acids


646.

Among the following, which is least acidic?

  • phenol

  • o-cresol

  • p-nitrophenol

  • p-chlorophenol


647.

The best method for the conversion of an alcohol into an alkyl chloride is by treating the alcohol with

  • PCl3

  • PCl5

  • SOCl2 in presence of pyridine

  • dry HCl in the presence of anhydrous ZnCl2


648.

The compound which is not formed during the dry distillation of a mixture of calcium formate and calcium acetate is

  • methanal

  • propanal

  • propanone

  • ethanal


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649.

The reaction involved in the oil of winter green test is salicylic acid conc. H2SO4 product. The product is treated with Na2CO3 solution. The missing reagent in the above reaction is

  • phenol

  • NaOH

  • ethanol

  • methanol


650.

Lucas test is associated with

  • aldehydes

  • phenols

  • carboxylic acids

  • alcohols


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