CORRECT-INCORRECT STATEMENT Identify the correct statement. (1) Sodium metal can be prepared by ...

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CORRECT-INCORRECT STATEMENT
Identify the correct statement.
(1) Sodium metal can be prepared by the electrolysis of an aqueous solution of \( \mathrm{NaCl} \).
(2) Sodium metal can be kept under ethyl alcohol.
(3) Sodium metal is insoluble in liquid \( \mathrm{NH}_{3} \) at low temperatures.
(4) Elemental sodium is easily oxidised.
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