s-Block ElementsHard

Question

Which of the following statement is not correct ?

Options

A.KOH is a stronger alkali than NaOH.
B.Milk of magnesia is aqueous suspension of Mg(OH)2
C.MgO is a refractory material used for lining electrical furnaces.
D.MgCl2.6H2O on heating yields Mg(OH)2.

Solution

MgCl2 being covalent in nature, gets hydrolysed by the water of crystallisation present, into MgO.
   MgCl2 . 6H2O  →  MgO + 2HCl + 5H2O

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