Question

Which of the following aluminum halides has ionic character?
a) AlF3 b) AICI; c) AIBr; d) Allz​

Answer 1

Answer:

Option a)

AlF3

Explanation:

The valency of aluminum is 3.

Therefore , It loses 3 electrons and gives it to 3 atoms of fluorine.

Thus it forms an Ionic bond and hence it has ionic character

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Answer 2

The following aluminum halides has ionic character:

a) AlF3

Explanation:

Ionic compounds

1. They are those that have ionic bond between them .
2. They have high meting and boiling point .
3. They are crystalline .
4. They are good conductors of heat and electricity .

Now, in the above asked question : Aluminium fluoride is most ionic that is

AlF₃ .

We know that : Small cation can stabilize small size anion and big size cation can stabilize big size anion .

Now, in this Al and F have size compatibility therefore , they can form stronger bond .

Also , this is a bond formed between metal and non metal , so they have electrostatic force  of attraction .Due to which they have ionic charcter in them .