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Which of the following elements has lowe...

Which of the following elements has lowest melting point -

A

Cr

B

Fe

C

Ni

D

Cu

Text Solution

Verified by Experts

The correct Answer is:
D
Cu has the lowest melting point because it has lowest enthalpy of atomisation (i.e., heat required to break the metal lattice to get free atoms) among the elements. Thus the order of enthalpy of atomisation (in kJ. `mol^(-1)`) of the given elements is : `Ni(430)gt Fe(416)gt Cr(397)gt Cu(339)`
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Knowledge Check

  • Which one of the following elements has the highest melting point -

    A
    He
    B
    Ne
    C
    Kr
    D
    Xe

  • Which of the followings has lowest melting point?

    A
    NaF
    B
    NaCl
    C
    NaBr
    D
    Nal

  • Which of the following has the lowest melting point-

    A
    `CaCl_2`
    B
    `CaBr_2`
    C
    `CaI_2`
    D
    `CaF_2`

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