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Question

Indicates a red flame when ionized with a Bunsen burner.

A
0.1M MgCl2
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B
0.1M HClO4
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C
0.1M NH4OH
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D
0.1M KOH
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E
0.1M LiNO3
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Solution

The correct option is E 0.1M LiNO3
0.1 M LiNO3 indicates a red flame when ionized with a Bunsen burner.
Metal ions impart characteristic colour to flame.
Given below are the flame colors and the metal ions that impart that colour.
Red: Lithium, strontium
Orange: Calcium
Yellow: Sodium
Green: Barium, copper
Violet: Potassium

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