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Solution A + solution B rarr Fehling,s r...

Solution A + solution B `rarr` Fehling,s reagent. What are A and B ?

A

aq. Copper sulphate, aq. Sodium potassium tartarate

B

aq. `AgNO_(3)`, aq. `NH_(4)OH`

C

aq. `AgNO_(3)`, alkaline sodium potasium tartarate

D

aq. Copper sulphate, alkaline Sodium potassium tartarate

Text Solution

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The correct Answer is:
D
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Fehling's solution is

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Knowledge Check

  • Fehling's solution is

    A
    Alkaline `CuSO_(4)^(+)` Rochelle salt (Sod. pot, tartrate )
    B
    Alkaline `CuSO_4` complexed with citrate ions
    C
    Ammoniacal `AgNO_3` solution
    D
    Magenta solutions in `H_2SO_3`

  • Equal masses of a solute are dissolved in equal amount of two solvents A and B respective molecular masses being M_(A) and M_(B) . The relative lowering of vapour pressure of solution in solvent A is twice that of the solution in solvent B. If the solutions are dilute , M_(A) and M_(B) are related as

    A
    `M_(A)=M_(B)`
    B
    `2M_(A)=M_(B)`
    C
    `M_(A)=2M`
    D
    `M_(A)=4M_(B)`

  • Zinc dust in alcoholic solution is a specific reagent in the preparation of alkenes as a

    A
    Dehydrohalogenating agent
    B
    Dehydrating agent
    C
    Dehydrogenating agent
    D
    Dehalogenating agent

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