On the basis of the sequence of the given reactions identify the most

1.	On the basis of the sequence of the given reactions identify the most and least reactive elements:X+ YA → XA + Y ...(i) X + YB → XB + Y ...(ii) Z + XA → ZA + X A. X and Z B. Y and Z C. Z and X D. Z and Y
Answer» From the sets of reactions i, ii, iii, it can be observed from i and ii that X is more reactive than Y and hence it displaces Y from its salt. From reaction iii it can be observed that Z is more reactive than X as it displaces X from its salt. So the most reactive element is Z and the least reactive is Y. So correct answer is d [Z and Y].

On the basis of the sequence of the given reactions identify the most and least reactive elements:X+ YA → XA + Y ...(i) X + YB → XB + Y ...(ii) Z + XA → ZA + X A. X and Z B. Y and Z C. Z and X D. Z and Y

Answer»

From the sets of reactions i, ii, iii, it can be observed from i and ii that X is more reactive than Y and hence it displaces Y from its salt.

From reaction iii it can be observed that Z is more reactive than X as it displaces X from its salt.

So the most reactive element is Z and the least reactive is Y.

So correct answer is d [Z and Y].