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 Multiple Choice QuestionsMultiple Choice Questions

61.

When glycerol is treated with excess of HI, it produces

  • 2-iodopropane

  • allyl iodide

  • propene

  • glycerol triiodide


62.

Which one of the following compounds will be most readily dehydrated?


63.

The alcohol having molecular formula C4H9OH, when shaken with a mixture of anhydrous ZnCl2 and cone. HCl gives an oily layer product after five minutes. The alcohol is

  • H3C-(CH2)3-OH

  • (CH3)2CH-CH2OH

  • (CH3)3C-OH

  • H3C-CH(OH)CH2-CH3


64.

 This reaction is called

  • Reimer-Tiemann reaction

  • Lederer-Manasse reaction

  • Sandmeyer reaction

  • Kolbe's reaction


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65.

Self condensation of two moles of ethyl acetate in the presence of sodium ethoxide after acidification yield

  • acetic acid

  • acetoacetic ester

  • ethyl propionate

  • ethyl butyrate


66.

The formula of ethyl carbinol is

  • CH3OH

  • CH3CH2OH

  • CH3CH2CH2OH

  • (CH3)3COH


67.

Which of the following gives red colour in Victor Meyer's test?

  • n-propyl alcohol

  • Isopropyl alcohol

  • tert-butyl alcohol

  • sec-butyl alcohol


68.

When p-nitrobromobenzene reacts with sodium ethoxide, the product obtained is

  • p-nitroanisole

  • ethyl phenyl ether

  • p-nitrophenetole

  • no reaction occurs


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69.

Hydroboration oxidation of 4-methyl octene would give

  • 4-methyl octanol

  • 2-methyl decane

  • 4-methyl heptanol

  • 4-methyl-2-octanone


A.

4-methyl octanol

Terminal alkenes react rapidly with diborane to form primary trialkyl boranes which on oxidation gives primary alcohols.

               

(In general hydroboration oxidation involve the addition of water according to anti-Markownikoff's rule).

 


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70.

When ethyl alcohol is heated with conc. H2SO4, the product obtained is

  • CH3COOC2H5

  • C2H2

  • C2H6

  • C2H4


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