Question

206 g of molten sodium bromide is decomposed electrolytically. The
maximum mass of sodium obtained is
[Atomic mass of Na = 23 u. Br = 80 u]
(A) 40 g
(B) 46 g
(C) 52 g
(D) 23 g
(E) None of these​

Answer 1

I option A is correct ok it is 40 gram ok if you like it mark it as brandy and thanks me

Answer 2

Explanation:

Correct answer is (B)

Solution:- Electrolysis decomposes iconic compounds into their elements.

Mass of NaBr = 23+80 = 103u

Now, 103g of NaBr contains 23g of Na

Therefore, 206g of NaBr contains 23/103×206 = 46g of Na

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