Subject

Chemistry

Class

JEE Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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41.

Which of the following ether is formed from alcohol and diazomethane?

  • 1-ethoxypropane

  • ethoxyethane

  • 1-methoxypropane

  • 2-ethoxypropane


C.

1-methoxypropane

1-methoxypropane is formed from propanol and diazomethane.

 CH3CH2CH2OHpropan -1-ol + CH2N2 HBF4 CH3CH2CH2OCH31-methoxypropane  + N2


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42.

The IUPAC name of the compound  is 

  • 1-bromo-1-chloro-4, 4'-bicyclobutane

  • 4-( 4'-chlorocyclobutyl)-1-bromocyclobutane

  • 3-bromo-3'-chloro-1, 1-bicyclobutane

  • 4-(4'-bromocyclobutyl)-1-chlorocyclo butane


43.

How many metamers are possible for molecular formula C4H11N ?

  • 2

  • 3

  • 4

  • 5


44.

Glucose on reaction with Br2 water gives

  • glucaric acid

  • gluconic acid

  • saccharic acid

  • citric acid


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45.

3-methylpentan-3-ol will be prepared from

  • ethyl formate and methyl magnesium bromide

  • ethyl ethanoate and ethyl magnesium bromide

  • ethyl propanoate and methyl magnesium bromide

  • ethyl formate and ethyl magnesium bromide


46.

Benzaldehyde reacts with ammonia to form

  • benzaldehyde ammonia

  • urotropine

  • hydrobenzamide

  • ammonium chloride


47.

Aldol condensation product of acetone on dehydration gives

  • but-2-enal

  • 2-methylpent-3-en-4-one

  • 4-hydroxy-4-methylpentan-2-one

  • 4-methylpent-3-en-2-one


48.

Which of the following gives condensation with hydroxyl amine but does not undergo self condensation?

  • Methanal

  • Propanal

  • Acetone

  • Ethanal


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49.

Decarboxylation of malonic acid gives

  • CH4

  • CH3COOH

  • Both (a) and (b)

  • None of the above


50.

Which of the following is the strongest base?


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