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The increasing order of reduction of alk...

The increasing order of reduction of alkyl halides with zinc and dilute HCl is

A

`R-Cl lt R-I lt R-Br`

B

`R-Cl lt R- Br lt R-I`

C

`R-I lt R- Br lt R- Cl`

D

`R- Br lt R-I lt R-Cl`

Text Solution

Verified by Experts

The correct Answer is:
B
The reactivity of halogens with alkane is `F_(2) gt Cl_(2) gt Br_(2) gt I_(2)` hence, reduction of alkyl halide with Zna nd dilute HCl follows reverse order i.e., R-IgtR-BrgtR-Cl. Further the reactivty of this reduction increases as the strength of C-X bond decreases.
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Knowledge Check

  • Increasing order of reactivity of alkyl halide is

    A
    `R-FltR-BrltR-O=I`
    B
    `R-IltR-BrltR-ClltR-F`
    C
    `R-IltR-BrltR-FltR-Cl`
    D
    `R-ClltR-FltR-BrltR-I`

  • The decreasing order of boiling points of alkyl halides is

    A
    `RF gt RCl gt RBr gt RI`
    B
    `RBr gt RCl gt RI gt GF`
    C
    `RI gt RBr gt RCl gt RF`
    D
    `RI gt RF gt RCl gt RBr`

  • The corrent order of dipole moment of alkyl halides is .

    A
    `RIgtRBrltRCIgtRF`
    B
    `RF gt RCI gt RBr gtRI`
    C
    `RCI gtRF gt RBr gt RI`
    D
    None of these

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