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Question: Answered & Verified by Expert
Consider the following reaction
M+O2MO2
(M = alkali metal) (stable superoxide)
Chemistrys Block ElementsNEET
Options:
  • A M can not be Li and Na
  • B M can not be Cs and Rb
  • C M can not be Li and Rb
  • D None of these
Solution:
2376 Upvotes Verified Answer
The correct answer is: M can not be Li and Na
The tendency to form superoxides among alkali metals increases down the group. Here Li and Na do not form stable superoxide.

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