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Aldehydes And Ketones Test - 20

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Aldehydes And Ketones Test - 20
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  • Question 1
    1 / -0

    Propyne on hydrolysis in presence of H2SO4 and HgSO4 gives

    Solution

     

  • Question 2
    1 / -0

    Benzoyl chloride on reduction with H2​/Pd−BaSO4​ produces________

    Solution

    A Rosenmund catalyst is used to reduce acyl chlorides to their corresponding aldehydes and is typically composed of palladium supported on BaSO4​

     

  • Question 3
    1 / -0

    Compound X in follwoing reaction is ....

    Solution

    Given reaction is Perkin reaction, hence X must be acetic anhydride, since sodium acetate is used as catalyst

     

  • Question 4
    1 / -0

    Aldol condensation will not be observed in ?

    Solution

    Aldol condensation is a condensation reaction in organic chemistry in which enol or enolate ion react with carbonyl compound to β-hydroxy aldehyde or β hydroxyketone followed by dehydration to give a conjugated none,this is not observed in chloral.

    Chloral,CCl3​CHO has no α-hydrogen atom and hence doesnot undergo aldol condensation.

     

  • Question 5
    1 / -0

    Which does not react with Fehling solution

    Solution

    Fehling solution is a weak oxidising agent therefore unable to oxidie benzaldehyde

     

  • Question 6
    1 / -0

    (CH3)2C = CHCOCH3 can be oxidised to (CH3)2C = CHCOOH by

    Solution

    (NaOH + I2)/NaOI is the best suitable reagent for the above reaction.

     

  • Question 7
    1 / -0

    What is compound (C) is reaction below

    Solution

     

  • Question 8
    1 / -0

    The end product in the following sequence of reaction is

    Solution

    A: CH3CHO

    B: CH3CH(OH) -CH3

    C: acetone

     

  • Question 9
    1 / -0

    The structural formula of the compound isomeric with acetone is

    Solution

    Acetone (CH3COCH3) and propanal (CH3CH2CHO) have same molecular formula C3H6O and are functional isomers

     

  • Question 10
    1 / -0

    Wolff-Kishner reduction is:

    Solution

     

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