1.

Boron does not form B^(3+) ions whereas Al forms Al^(3+) ions. This is because

Answer»

The SIZE of B atom is larger than that of Al
The sum of `IE_(1) + IE_(2) + IE_(3)` of B is much HIGHER than that of Al
The sum of `IE_(1) + IE_(2) + IE_(3)` of Al is much higher than that of B 
Both 1 and 2 

ANSWER :B


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