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Q.

Three different beakers are set up as shown

In beaker 1 metal W is displaced from solution

In beaker 2 metal X is displaced from solution

In beaker 3 metal Y is displaced from solution

What is the order of decreasing reactivity of the four metals?

Most reactive $\to$ Least reactive

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a

X Y W Z

b

Z W X Y

c

W X Y Z

d

Z X W Y

answer is B.

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Detailed Solution

Metal

Z > W

(high reactive metal displaces the less reactive.

$Metal X < W$

$Metal Y < X$

$∴$ We are arranging the order from W to X.

$Z > W > X > Y$ .

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Three different beakers are set up as shown In beaker 1 metal W is displaced from solution In beaker 2 metal X is displaced from solution In beaker 3 metal Y is displaced from solution What is the order of decreasing reactivity of the four metals? Most reactive→ Least reactive