A chloride is soluble in cold water. When it | vedclass

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Question

(A) The flame test is used to identify metal ions based on the characteristic color they impart to a Bunsen flame. $Be^{2+}$ and $Mg^{2+}$ ions do not

Vedclass · Accepted Answer

$Be^{2+}$

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(A) The flame test is used to identify metal ions based on the characteristic color they impart to a Bunsen flame. $Be^{2+}$ and $Mg^{2+}$ ions do not impart any characteristic color to the flame because the energy of the flame is not sufficient to excite their electrons to higher energy levels. Among the given options,$Be^{2+}$ is the correct cation that does not show a flame test.

$A$ chloride is soluble in cold water. When it is placed on a $Pt$ wire and heated in a Bunsen flame,it does not impart any characteristic color to the flame. Which of the following cations is present?

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