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Which of the following metals have low m...

Which of the following metals have low melting points?
(i) Cesium (ii) Francium
(iii) Gallium (iv) Rubidium

A

`(i),(iii)`

B

`(i),(ii)`

C

`(i),(ii),(iii),(iv)`

D

`(iii),(iv)`

Text Solution

Verified by Experts

The correct Answer is:
C
All of these metals have melting points below `40^(2)C: Cs (28.5^(@)), Fr (27^(@)C), Ga (30^(@)C)`, and `Rb(39^(@)C)`.
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R SHARMA-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS-Follow-up Test
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  11. Which of the following is not the characteristic feature of nonmetals?

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  16. The covalent radius (r(cov)) is defined as the half-distance between t...

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  18. The van der Waals radius (r(vdw)) is defined as the half-distance betw...

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