JEE Questions for Chemistry Aldehydes Ketones And Carboxylic Acids Quiz 6 - MCQExams.com


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  • acetaldehyde
  • acetylene
  • ethylene
  • acetyl chloride
What represents the best method for producing salicylic acid?
  • Benzoic acid, strong base, high temperature
  • Toluene, strong base, water, high temperature
  • Phenol, base carbondioxide then acid
  • Bromobenzene, carbonic acid, high temperature
Match the following columns.
Chemistry-Aldehydes Ketones and Carboxylic Acids-422.png
  • A = 3, B = 1, C = 4, D = 2
  • A = 4, B = 2, C = 3, D = 1
  • A = 2, B = 3, C = 1, D = 4
  • A = 3, B = 4, C = 1, D = 2
Among the following compounds, the one(s) that gives (give) effervescence with aqueous NaHCO3 solution is (are)
I. (CH3CO)2OCH3
II. COOHPhOH
III. CH3
IV. COCHO
  • I and II
  • I and III
  • Only II
  • I and IV
What will be the end product (B ) in the following sequence of reactions?
Chemistry-Aldehydes Ketones and Carboxylic Acids-423.png
  • 1, 2-dibromobenzene
  • 1, 2-dibromobenzaldehyde
  • 1, 3-dibromobenzene
  • 1, 4-dibromobenzene
The total number of carboxylic acid groups in the product P is
Chemistry-Aldehydes Ketones and Carboxylic Acids-424.png
  • 5
  • 2
  • 4
  • 3
An organic compound A upon reacting with NH3 gives B . On heating , B gives C . C in the presence of KOH reacts with Br2 to give CH3CH2NH2. A is
  • CH3COOH
  • CH3CH2CH2COOH

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-425.png
  • CH3CH2COOH
The reaction of CO2 with sodium phenoxide at 400 K result in
  • benzoic acid
  • sodium benzoate
  • salicylaldehyde
  • sodium salicylate
Which one of the following reacts with Grignard reagent to form an addition product which can be hydrolysed to a carboxylic acid ?
  • O2
  • CO2
  • SO2
  • None of these
The compound that undergoes decarboxyliation most readily under mild condition is

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-427.png
  • 2)
    Chemistry-Aldehydes Ketones and Carboxylic Acids-428.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-429.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-430.png

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  • Chemistry-Aldehydes Ketones and Carboxylic Acids-433.png
  • 2)
    Chemistry-Aldehydes Ketones and Carboxylic Acids-434.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-435.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-436.png
What product is formed when cyclohexanone is oxidised?
  • HOOC∙(CH2)4 ∙ COOH
  • CH3CH2COOH
  • CH3 (CH2)4COOH
  • None of the above
Identify the method by which Me3CCO2H can be prepared.
  • Treating 1 mole of MeCOMe with 2 moles of MeMgI
  • Treating l mole of MeCO2Me with 3 moles of MeMgI
  • Treating 1 mole of MeCHO with 3 moles of MeMgI
  • Treating 1 mole of dry ice with 1 mole of Me3CMgI
Which one of the following is an example of Hell-Volhard-Zelinsky reaction?

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-437.png
  • 2)
    Chemistry-Aldehydes Ketones and Carboxylic Acids-438.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-439.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-440.png
Consider the acidity of the carboxylic acids
I. PhCOOH
II. o-NO2C6H4COOH
III. p -NO2C6H4COOH
IV. m-NO2C6H4COOH
Which of the following order is correct?
  • I > II > III > IV
  • II > IV > III > I
  • II > IV > I > III
  • II > III > IV > I
Identify D in the following reaction
Chemistry-Aldehydes Ketones and Carboxylic Acids-441.png
  • HOOC— CH2— COOH
  • OHC— CH2— COOH
  • OHC— CH2— CHO
  • HO— CH=CH— COOH
A liquid was mixed with ethanol and a drop of concentrated H2SO4 was added. A compound with a fruity smell was formed. The liquid was
  • CH3OH
  • HCHO
  • CH3COCH3
  • CH3COOC2H5
Which of the following is a better reducing agent for the following reduction?
RCOOH→RCH2 OH
  • SnCL2 /HCl
  • NaBH4 /ether
  • H2/Pd
  • N2H4 /C2H5ONa
  • B2H6 /ether

Chemistry-Aldehydes Ketones and Carboxylic Acids-443.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-444.png
  • 2)
    Chemistry-Aldehydes Ketones and Carboxylic Acids-445.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-446.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-447.png
The correct order of acidic strengths of the carboxylic acids is
  • formic acid < benzoic acid < acetic acid
  • formic acid < acetic acid < benzoic acid
  • acetic acid < formic acid < benzoic acid
  • acetic acid < benzoic acid < formic acid
Identify A and B in the following reaction
Chemistry-Aldehydes Ketones and Carboxylic Acids-449.png
  • A = HI + red P , B = LiAlH4
  • A = Ni/∆ , B = LiAlH4
  • A = LiAlH4 , B = HI + red P
  • A = Pd—BaSO4 , B = Zn + HCl
End product of the following reaction is
Chemistry-Aldehydes Ketones and Carboxylic Acids-451.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-452.png
  • 2)
    Chemistry-Aldehydes Ketones and Carboxylic Acids-453.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-454.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-455.png

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  • RCHBrCONH2 ; RCH(NH2 )COOH
  • RCHBrCOOH; RCH(NH2 )COOH
  • RCH2 COBr; RCH2 COONH4
  • RCHBrCOOH; RCH2CONH2
The property which distinguishes formic acid from acetic acid is
  • Only ammonium salt of formic acid on heating gives amide
  • when heated with alcohol/H2SO4 only acetic acid forms ester
  • Only acetic acid forms salts with alkali
  • Only formic acid reduces Fehling's solution

Chemistry-Aldehydes Ketones and Carboxylic Acids-458.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-459.png
  • 2)
    Chemistry-Aldehydes Ketones and Carboxylic Acids-460.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-461.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-462.png

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  • Chemistry-Aldehydes Ketones and Carboxylic Acids-464.png
  • 2)
    Chemistry-Aldehydes Ketones and Carboxylic Acids-465.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-466.png

  • Chemistry-Aldehydes Ketones and Carboxylic Acids-467.png

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  • alkyl chloride
  • aldehyde
  • carboxylic acid
  • ketone
When CH2 = CH—COOH is reduced with LiAlH4 , the compound obtained will be
  • CH3 —CH2 —COOH
  • CH2 = CH—CH2OH
  • CH3CH2CH2OH
  • CH3CH2CHO
The weakest acid amongst the following is
  • ClCH2COOH
  • HCOOH
  • FCH2CH2COOH
  • CH2(I)COOH
Given below are some statements concerning formic acid, which of them is true?
  • It is weaker acid than acetic acid
  • It is reducing agent
  • When its calcium salt is heated, it forms a ketone
  • It is an oxidising agent
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