Red hot carbon will remove oxygen from the oxides $X O$ and $Y O$ but not from $Z O . Y$ will remove oxygen from $X O$ . Use this evidence to deduce the order of activity of the three metals $X, Y$ and $Z$ putting the most active first.

X Y Z

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Z Y X

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Y X Z

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Z X Y

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Solution

The correct option is B $Z Y X$
Since carbon can't remove oxygen from $Z O, Z$ is the most active metal.
In $X$ and $Y$ , $Y$ can replace $X$ , so $Y$ is more reactive and $X$ is the least reactive.
Hence, order of activity $Z Y X$ .

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Red hot carbon will remove oxygen from the oxides XO and YO but not from ZO.Y will remove oxygen from XO. Use this evidence to deduce the order of activity of the three metals X,Y and Z putting the most active first.

The correct option is B ZYXSince carbon can't remove oxygen from ZO,Z is the most active metal.In X and Y, Y can replace X, so Y is more reactive and X is the least reactive. Hence, order of activity ZYX.

Red hot carbon will remove oxygen from the oxides $X O$ and $Y O$ but not from $Z O . Y$ will remove oxygen from $X O$ . Use this evidence to deduce the order of activity of the three metals $X, Y$ and $Z$ putting the most active first.

The correct option is B $Z Y X$
Since carbon can't remove oxygen from $Z O, Z$ is the most active metal.
In $X$ and $Y$ , $Y$ can replace $X$ , so $Y$ is more reactive and $X$ is the least reactive.
Hence, order of activity $Z Y X$ .