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Which one of the following correctly represents the variation of electronegativity (EN) with atomic number $(Z)$ of group 13 elements?
Options:
- A
- B
- C
- D
Solution:
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Verified Answer
The correct answer is:
For group 13 elements, electronegativity decreases from B to Al. The decrease in electronegativity from $\mathrm{B}$ to $\mathrm{Al}$ is due to increased size of Al. The remaining three elements are more electro negative than $\mathrm{Al}$ and their electroonegativity increases from Ga to TI.
Thus, the correct order of electronegativity of group 13 elements are as follows.
Thus, the correct order of electronegativity of group 13 elements are as follows.
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