The increasing order of acidic character of phenol, p-cresol, m-n

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 Multiple Choice QuestionsMultiple Choice Questions

611.

Ethyl alcohol exhibits acidic character on reacting with

  • acetic acid

  • sodium metal

  • hydrogen iodide

  • acidic potassium dichromate


612.

Diethyl ether on heating with conc. HI gives two moles of

  • ethyl iodide

  • ethanol

  • Iodoform

  • methyl iodide


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613.

The increasing order of acidic character of phenol, p-cresol, m-nitrophenol and p-nitrophenol is

  • phenol, p-cresol, p-nitrophenol, m-nitrophenol

  • p-cresol, phenol, m-nitrophenol p-nitrophenol

  • p-cresol, m-nitrophenol, phenol, p-nitrophenol

  • m-nitrophenol, phenol, p-cresol, p-nitrophenol


B.

p-cresol, phenol, m-nitrophenol p-nitrophenol

Presence of electron withdrawing groups like -NO2, increases the acidity of phenols while presence of electron, releasing groups like -CH4 decreases the acidity of phenols.

Hence, the increasing order of acidity is

             


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614.

The commercial production of methanol is done by

  • the catalytic reduction of CO in presence of ZnO, Cr2O3

  • the reaction of water vapour on CH4 at 900°C in presence of nickel catalys

  • the reaction offormaldehyde with LiAlH4

  • reaction of aqua KOH on HCHO


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615.

What is the IUPAC name of the follwoing compound?

                       

  • 3-methyl cyclo-1-butene-2-ol

  • 4-methyl cyclobut-2-ene-1-ol

  • 4-methyl cyclobut-1-ene-3-ol

  • 2-methyl cyclo-3-butene-1-ol


616.

Methoxy methane and ethanol are

  • functional isomers

  • chain isomers

  • optical isomers

  • geometrical isomers


617.

When phenol is distilled with Zn dust it gives

  • benzaldehyde

  • benzoic acid

  • toluene

  • benzene


618.

The compound added to prevent chloroform to form phosgene gas (poisonous gas) is

  • CH3COOH

  • CH3OH

  • CH3COCH3

  • C2H5OH


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619.

The reaction C2H5ONa + BrC2H5 → C2H5-O-C2H5 + NaBr is called

  • Frankland reaction

  • Wurtz reaction

  • Williamson's synthesis

  • Cannizaro reaction


620.

Diethyl ether on heating with conc. HI gives two moles of

  • ethyl iodide

  • ethanol

  • iodoform

  • methyl iodide


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