10.7 In what ways lithium shows similarities to magnesium in its chemical behaviour?

Answers (1)

Chemical similarities between lithium and magnesium-

  1. Li and Mg slowly react with water and their hydroxide and oxides are also less soluble in water. On heating, their hydroxide decomposes. Both the element form nitride Mg_{3}N_{2} and Li_{3}N by direct reaction with nitrogen. 
  2. Li_{2}O and MgO do not give superoxide on reacting with an excess of oxygen.
  3. Lithium and Magnesium carbonates easily decompose into their oxides and carbon dioxide.
  4. Chlorides of both element soluble in ethanol.
  5. Both chlorides can crystallise from their aqueous solution as hydrates, LiCl.2H_{2}O and MgCl_{2}.8H_{2}O

 

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