s-Block ElementsHard

Question

Peroxide ion is present in :

Options

A.K₂O₂

B.CaO

C.Li₂O

D.BaO₂

Solution

BaO₂ exists as Ba²⁺ and O₂^2- and K₂O₂ exists as K⁺ and O₂^2-, therefore, O₂^2- is peroxide ion.

Create a free account to view solution

View Solution Free

Topic: s-Block Elements·Practice all s-Block Elements questions

More s-Block Elements Questions

What products are formed during the electrolysis of a concentrated aqueous solution of sodium chloride ?I. Cl2 (g) , II ...A chloride dissolves appreciably in cold water. When placed on a platinum wire in Bunsen flame, no distinctive colour is...CaCl2 + H2SO4 CaSO4.2H2O (r) (s) Which of the following option describes, the products, reactants and the reaction condi...Among LiCl, RbCl, BeCl2, MgCl2 the compounds with greatest and least ionic character respectively are :...Which of the following statement is incorrect ?...