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which of the following set of elements cannot be a triad?A. `Li,Na,k`B. B,Al,GaC. Be,Mg,CaD. Cl,Br,I |
Answer» Correct Answer - B B,Al and Ga are not a triad beacuse the atomic weight of `Al` is not equal to avarage atomic weight of `B` and `Ga`. |
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