Study the following extraction processes carefully
(i) $2 X S (s) + 3 O_{2} (g) \overset{Δ}{\to} 2 X O (s) + 2 S O_{2} (g), 2 X O (s) \overset{Δ}{\to} 2 X (l) + O_{2} (g)$
(ii) $Y C O_{3} (s) \overset{Δ}{\to} Y O (s) + C O_{2} (g), Y O (s) + C (s) \overset{Δ}{\to} Y (s) + C O (g)$
(iii) $Z C l \to Z^{+} + C l^{-}$
$A t c a t h o d e : Z^{+} + e^{-} \to Z$
$A t a n o d e : 2 C l^{-} \to C l_{2} + 2 e^{-}$
What is the correct order of reactivity of X, Y, and Z as inferred from the above reactions?

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X > Y > Z

Y > Z > X

Z > Y > X

Y = X > Z

answer is C.

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Detailed Solution

Here Z is highly reactive and present at the top of the series.

Y is moderately present in the middle of the series.

X is the least reactive at the present bottom of the series.

Then correct the order of reactivity $Z > Y > X$

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