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Q.

Three different beakers are set up as shown

Question Image

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

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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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