Which of the following substances will not gi | vedclass

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(C) The borax bead test is used to identify colored transition metal ions. $Borax$ $(Na_2B_4O_7 \cdot 10H_2O)$ on heating forms a transparent glassy b

Vedclass · Accepted Answer

Sodium

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(C) The borax bead test is used to identify colored transition metal ions. $Borax$ $(Na_2B_4O_7 \cdot 10H_2O)$ on heating forms a transparent glassy bead consisting of $NaBO_2$ and $B_2O_3$. Transition metal oxides react with this bead to form colored metaborates. Since $Sodium$ $(Na)$ is an alkali metal and does not form colored metaborates,it does not give the borax bead test. $Chromium$,$Ferrous$ salts,and $Cobalt$ are transition metals/ions that form characteristic colored beads.

Which of the following substances will not give the borax bead test?

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