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Question

Which of the following indicates a red flame when ionized with a bunsen burner?

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

The correct option is E 0.1 M LiNO3
0.1 M LiNO3 indicates a red flame when ionized with a bunsen burner.
In bunsen burner, alkali metal salts give characteristic colour to the flame. Li salts give crimson red colour. Na salts give golden yellow colour. K salts give violet colour

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