When copper salt is rubbed with concentratedHCl and placed in the non luminous part of the bunsen burner flame.
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11th
Chemistry
The s-Block Elements
Group 2 Elements: Alkaline Earth Metals
A chemistry student trying ...
CHEMISTRY
A chemistry student trying to detect the metallic ion in a salt makes a paste on the clean Pt wire-loop of the salt with concentrated HCl. When he takes a small amount of this paste and keeps it in a non-luminous Bunsen flame, the color of the flame changes to grassy green. He should, therefore, conclude that the metal is:
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A chemistry student trying to detect the metallic ion in a salt makes a paste on the clean Pt wire-loop of the salt with concentrated HCl. When he takes a small amount of this paste and keeps it in a non-luminous Bunsen flame, the color of the flame changes to grassy green. He should , therefore, conclude that the metal is Barium (Ba). The table below gives a rough color guide for the elements.
Flame color :
Li= red
Na= strong, persistent orange
K= lilac (pink)
Rb= red (red-violet)
Cs= blue/violet (see below)
Ca= orange-red
Sr= red
Ba= pale green
Cu= blue-green (often with white flashes)
Pb= gray-white