Which of the following is the superoxide of potassium?

  • A
    $K_2O$
  • B
    $K_2O_2$
  • C
    $KO_2$
  • D
    $K_2O_3$

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Identify $A$ and $B$ from the following reaction: $NaNO_3 \xrightarrow{\Delta} A + B$

Which one of the following alkali metals gives hydrated salts?

Which of the following is the correct order of stability for alkali metal chlorides?

Which of the following elements forms a superoxide when reacted with air?

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