Which of the following will not give a flame | vedclass

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(B) The flame test is based on the excitation of electrons to higher energy levels by the heat of the flame. $Be^{2+}$ and $Mg^{2+}$ ions have very hi

Vedclass · Accepted Answer

$Be^{2+}$

Vedclass · Answer

(B) The flame test is based on the excitation of electrons to higher energy levels by the heat of the flame. $Be^{2+}$ and $Mg^{2+}$ ions have very high ionization energies and their electrons are too strongly bound to be excited by the energy available in a Bunsen flame. Therefore,$Be^{2+}$ does not impart any characteristic color to the flame.

Which of the following will not give a flame test?

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