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Question

Which of the following gives crimson red colour during the flame test?

A

Cs

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B

Rb

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C

Li

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D

Fr

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Solution

The correct option is C

Li


It is the characteristic property of lithium to give crimson red colour during the flame test. When lithium is heated the electrons absorb energy and jump to higher energy levels, when they fall down they emit radiations in the visible range.

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