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Solution


Q.

Identify the incorrect statement from the following:       [2022]
1 Lithium is the strongest reducing agent among the alkali metals.  
2 Alkali metals react with water to form their hydroxides.  
3 The oxidation number of K in KO₂ is +4.  
4 Ionisation enthalpy of alkali metals decreases from top to bottom in the group.  

Ans.

(3)