Sodium metal is stored in X because it reacts vigorously with air to produce Y. Choose the correct option from X and Y.

Read the following statements carefully and select the correct statement about the physical and chemical properties of metals.

(i) All metals are ductile.

(ii) Generally metals are ductile.

(iii) Metals that are more reactive than hydrogen reacts with acids to release hydrogen.

(iv) All metals react with acids to release hydrogen gas.

Correct the statement by substituting the X and Y with correct options. X can't be drawn into wires because it is not Y in nature.

Which of the following oxide(s) of iron would be obtained, on the prolonged reaction of iron with steam?