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Which of the following is used in the pr...

Which of the following is used in the preparation of chlorine?

A

only `MnO_(2)`

B

only `KMnO_(4)`

C

Both `MnO_(2)` and `KMnO_(4)`

D

Either `MnO_(2)` and `KMnO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
3
Cholrine can be prepared by heating concentratied hydrocholric acid with an oxidising agent such manganese dioxide, potassium permanganate, etc.
`{:(MnO_(2)+2HCl rarr MnCl_(2)+H_(2)O+O),(2HCl+O rarr Cl_(2)+H_(2)O),(bar(MnO_(2)+4HCl rarr MnCl_(2)+H_(2)O+Cl_(2))),(2KMnO_(4)+16HCl rarr 2KCl+2MnCl_(2)+8 H_(2)O+5 Cl_(2)):}`
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Knowledge Check

  • Which of the following is used in the prepration of chlorine ?

    A
    Only `MnO_(2)`
    B
    Only `KMnO_(4)`
    C
    Both `MnO_(2)` and `KMnO_(4)`
    D
    Either `MnO_(2)` and `KMnO_(4)`

  • Which of the following is used in the preparation of RMgX?

    A
    Dimethyl ether
    B
    Diethyl ether
    C
    Ethyl methyl ether
    D
    Ethanol

  • Which of the following is not used in the preparation of ketone ?

    A
    Oxidation of secondary alcohols
    B
    Dehydrogenation fo `2^(0)` alcohol
    C
    Pyrolysis of calcium acetate
    D
    Acid hydrolysis of alkyl cyanide