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    CBSE

    Subject

    Chemistry
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    NEET Chemistry : Alcohols, Phenols and Ethers

    Multiple Choice Questions

    111.

    Assertion : Ethers can be dried by using sodium wire.

    Reason : Ethers do not react with sodium.

    • If both assertion and reason are true and reason is the correct explanation of assertion

    • If both assertion and reason are true but reason is not the correct explanation of assertion

    • If assertion is true but reason is false

    • If both assertion and reason are false

    Answer
    • 112.

    Dehydration of glycerol produces :

    • propanone

    • allyl alcohol

    • glycol

    • acrolein

    Answer
    • 113.

    Assertion: C2H5Br reacts with alcoholic solution of AgNO2 to form nitroethane as the major product.

    Reason : NO2- is an ambidient ion.

    • If both assertion and reason are true and reason is the correct explanation of assertion

    • If both assertion and reason are true but reason is not the correct explanation of assertion

    • If assertion is true but reason is false

    • If both assertion and reason are false

    Answer
    • 114.

    CH3OC2H5 and (CH3)3C-OCH3 are treated with hydroiodic acid. The fragments after reactions obtained are

    • CH3I + HOC2H5; (CH3)3C-I + HOCH3

    • CH3OH + C2H5I; (CH3)3Cl + HOCH3

    • CH3OH + C2H5; (CH3)3C-OH + CH3I

    • CH3I + HOC2H5; CH3I + (CH3)3C-OH

    Answer
    • 115.

    In which of the following reactions carbon-carbon bond formation takes place ?

    • Cannizaro

    • Reimer - Tiemann

    • HVZ reaction

    • Schmidt reaction

    Answer
    • 116.

     →∆Soda lime A →? Anisole

    Reagent in second step should be :

    • CH3Cl

    • KOH + C2H5OH

    • KOH + C2H5SH

    • KOH + Cl2

    Answer
    • 117.

    In Oppenauer's oxidation,

    • secondary alcohol is oxidised to carboxylic acid in acetone solvent using aluminium tertiary butoxide

    • secondary alcohol is oxidised to carboxylic acid without affecting the C=C or C=C bond by aluminium tertiary butoxide in acetone solvent

    • secondary alcohol is oxidised to ketone without affecting C=C or C=C bond by aluminium tertiary butoxide

    • secondary alcohol is oxidised to ketone by chromic acid - pyridine complex.

    Answer
    • 118.

    Assertion : In fused state, calcium chloride cannot be used to dry alcohol or NH3.

    Reason : CaCl2 is not a good dessicant.

    • If both assertion and reason are true and reason is the correct explanation of assertion

    • If both assertion and reason are true but reason is not the correct explanation of assertion

    • If assertion is true but reason is false

    • If both assertion and reason are false.

    Answer
    • 119.

    In solvents like DMSO, acetonitrile, F- ion of dissolved NaF is more reactive than in methyl alcohol becasue

    • CH3OH is more polar than DMSO and CH3CN

    • CH3OH is less polar than DMSO and CH3CN

    • unsolvated F- ion is DMSO or CH3CN acts more efficiently as nucleophile

    • -OH group is a better leaving group than F- ion

    Answer
    • 120.

    Assertion : Esters which contain α-hydrogens undergo Claisen condensation.

    Reason : LiAlH4 reduction of esters gives acids.

    • If both assertion and reason are true and reason is the correct explanation of assertion

    • If both assertion and reason are true but reason is not the correct explanation of assertion

    • If assertion is true but reason is false

    • If both assertion and reason are false

    Answer
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