JEE Questions for Chemistry Aldehydes Ketones And Carboxylic Acids Quiz 4 - MCQExams.com

The product formed when hydroxylamine condenses with a carbonyl compound is called
  • hydrazide
  • oxime
  • hydrazine
  • hydrazone
Self condensation of acetaldehyde in the presence of dilute alkalies gives
  • an acetal
  • an aldol
  • mesitylene
  • propionaldehyde
On reaction with hydroxylamine, aldehydes produce
  • ketoxime
  • hydrazone
  • semicarbazone
  • aldoxime
Which one of the following is reduced with zinc and hydrochloric acid to give the corresponding hydrocarbon?
  • Ethyl acetate
  • Acetic acid
  • Acetamide
  • Butan-2-one
Benzaldehyde on refluxing with aqueous alcoholic KCN produce
  • cyanobenzene
  • cyanohydrin
  • benzoyl cyanide
  • benzoin
Tollen's reagent is
  • [Ag(NH3)2]NO3
  • [Ag(NH3)2]Br
  • Both (and (2)
  • None of these
Benedict's solution is not reduced by
  • formaldehyde
  • acetaldehyde
  • glucose
  • acetic anhydride
Acetone reacts with Grignard reagent to form
  • 3° alcohol
  • 2° alcohol
  • ether
  • No reaction
Acetals are
  • Ketones
  • diethers
  • aldehyde
  • hydroxy aldehydes
Aldehydes can be oxidised by
  • Tollen's reagent
  • Fehling's solution
  • Benedict solution
  • All of these
How will you convert butan-2-one to propanoic acid?
  • Tollen's reagent
  • Fehling's solution
  • NaOH/I2/H+
  • NaOH/ NaI/ H+
Acetone and acetaldehyde can be distinguished by
  • Molisch test
  • Tollen's test
  • Schiff s test
  • Iodoform test

Chemistry-Aldehydes Ketones and Carboxylic Acids-349.png
  • hydroxy nitrile
  • hydroxy cyanide
  • cyanohydrin
  • hydroxy isocyanide
Benzyl alcohol and sodium benzoate is obtained by the action of sodium hydroxide on benzaldehyde. This reaction is known as
  • Perkin's reaction
  • Cannizzaro's reaction
  • Sandmeyer's reaction
  • Claisen condensation
Which of the following will form two isomers with semi carbazide ?
  • Benzaldehyde
  • Acetone
  • Benzoquinone
  • Benzophenone
The acetophenone can be converted to ethylbenzene by reaction with
  • LiAlH4
  • H2NOH
  • Pd / BaSO4 - H2
  • Zn-Hg / HCl
Identify the organic compound which, on heating with strong solution of NaOH , partly converted into an, acid salt and partly into alcohol.
  • Benzyl alcohol
  • Acetaldehyde
  • Acetone
  • Benzaldehyde
Which of the following does not give Fehling solution test ?
  • Acetone
  • Propanal
  • Ethanal
  • Butanal
The most suitable reagent for the conversion of R— CH2— OH → R — CHO is
  • KMnO4
  • K2 Cr2 O7
  • CrO3
  • PCC (pyridinium chlorochromate)
Shown below are four possible synthesis of propionaldehyde. Which one would not work?

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-351.png
  • 2)
    Chemistry-Aldehydes Ketones and Carboxylic Acids-352.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-353.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-354.png

Chemistry-Aldehydes Ketones and Carboxylic Acids-356.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-357.png
  • 2)
    Chemistry-Aldehydes Ketones and Carboxylic Acids-358.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-359.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-360.png
Acetophenone cannot be prepared easily starting from
  • C6H5CH(OH)CH3
  • C6H5CH3
  • C6H5C ≡ CH
  • C6H6
The reagents to carry out the following conversion are
Chemistry-Aldehydes Ketones and Carboxylic Acids-362.png
  • HgSO4 / dil. H2SO4
  • BH3 ; H2O2 / NaOH
  • OsO4 ; HIO4
  • NaNH2 / CH3I ; HgSO4 / dil. H2SO4
What will be the product/s if benzyl chloride is heated with a concentrated aqueous KOH solution?
  • Benzaldehyde
  • Benzoic acid
  • Benzyl alcohol and sodium benzoate
  • An aldol
What type of compound is shown below?
Chemistry-Aldehydes Ketones and Carboxylic Acids-364.png
  • An alcohol
  • An aldehyde
  • A ketone
  • None of these
Which set of products is expected on reductive ozonolysis of the following diolefin?
Chemistry-Aldehydes Ketones and Carboxylic Acids-365.png
  • CH3CHO; CH3COCH = CH2
  • CH3CH = C (CH3 )CHO; CH2O
  • CH3CHO; CH3COCHO; CH2O
  • CH3CHO; CH3COCH3 ; CH2O
Which of the following on heating with aqueous KOH, produces acetaldehyde?
  • CH3COCl
  • CH3CH2Cl
  • CH2ClCH2Cl
  • CH3CHCl2
The compound which forms acetaldehyde when heated with dilute NaOH, is
  • 1,1-dicholoroethane
  • 1,1,1-trichloroethane
  • 1-chloroethane
  • 1,2-dichloroethane

Chemistry-Aldehydes Ketones and Carboxylic Acids-367.png
  • H2 O
  • HCHO
  • CO
  • CH3 CHO
The product P in the reaction,
Chemistry-Aldehydes Ketones and Carboxylic Acids-369.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-370.png
  • 2)
    Chemistry-Aldehydes Ketones and Carboxylic Acids-371.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-372.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-373.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-374.png
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