Which of the following statement regarding isolation of Na and K metal is true –

(A) These metals can be isolated by the reduction of their oxides 

(B) These metals can be prepared from their aqueous salt solutions by metal displacement

(C) These metals can be prepared by the electrolysis of their aqueous salt solutions

(D) These metals can be prepared by the electrolysis of their fused chlorides

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Physical Properties & Characteristics
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