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Question: Answered & Verified by Expert
In flame tests for alkali metals, why is it important to use an oxidizing flame?
Chemistrys Block ElementsNEET
Options:
  • A To create a larger flame
  • B To minimize the heat generated
  • C To prevent the emission of characteristic colors
  • D To provide the conditions for excitation of electrons
Solution:
2831 Upvotes Verified Answer
The correct answer is: To provide the conditions for excitation of electrons
An oxidizing flame is used in flame tests for alkali metals because it provides the necessary conditions, including oxygen, to excite the outermost orbital electrons of alkali metal atoms, leading to the emission of characteristic colors.

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