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The alkali metals have low melting point...

The alkali metals have low melting point. Which of the following alkali metal is expected to melt if the room temperature rises to `30^(@)C` ?

A

Na

B

K

C

Rb

D

Cs

Text Solution

Verified by Experts

The correct Answer is:
D
Atomic size increases down the group from Na to Cs so, the strength of metallic bonding decreases and hence, themelting point also decreases.
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Knowledge Check

  • The alkali metals are low melting . Which of the following alkali metals is expected to melt if the room temperature rises to 30^(@)C ?

    A
    Na
    B
    K
    C
    Rb
    D
    Cs

  • The alkali metal having low melting point is

    A
    Fr
    B
    Cs
    C
    Rb
    D
    Na.

  • The alkali metal having highest melting point is

    A
    Li
    B
    Na
    C
    Cs
    D
    Rb

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    Which of the following is NOT an alkali metal ?

    Which one of the following alkali metals is the most metallic?

    Which one of the following is an alkali metal ?

    The alkali metals have relatively low melting point . Which one of the following alkali metals is expected to have the highest melting point ?

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