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Identify the correct statements from the...

Identify the correct statements from the following
(i) The atomic radius of Al is lower than the atomic radius of Ga.
(ii) Boron exists in many allotropic forms.
(iii) The melting point of Ga is lowest among the group 13 elements.

A

`i,ii,iii`

B

ii, iii

C

`I,ii`

D

`I,iii`

Text Solution

Verified by Experts

The correct Answer is:
B
Boron exists in many allotropic forms.
(i) `alpha` - rhombohedral
`beta` - rhombohedral
`beta` - tetragonal
in many specific condition it will exists in `alphaandbeta`-tetragonal forms.
The melting point of Ga is lowest in group 13. When we go down to group melting point will increase.
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