Question

please answer 14th one

Answer 1

Hey buddy

Here is ur answer

Answer is C because Ag is found in free state

Na and cu is refined by electrolytic refining

Hope this will Help u

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Answer 2

Heya user,
Here is your answer !!

Metals placed higher in the metal reactivity series make strong bonds and they cannot be refined by simple physical means.

Hence, metals like sodium (Na) and aluminium (Al) are refined by stable chemical methods like Electro Refining.

Hence, the answer is (D) both (iii) and (iv) .

Hope it helps !!