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Based on the Group Valency of Element Write the Molecular Formula of the Following Compound Giving Justification: Halide of the Elements of Group Thirteen - Science

Question

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Based on the group valency of element write the molecular formula of the following compound giving justification:

Halide of the elements of group thirteen

Solution

Halides of group 13 elements have a common formula of MX3, where M-metal and X- halogen element.
Example- AICI3, BF3. This is because the valency of group 13 elements is 3 and that of halogens is 1 so, to satisfy the combining capacity of aluminum or other group 13th elements three of halogens are required in the molecular formula.

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