NTA Abhyas NEET2020ChemistryElectrochemistryPractice
Each of the three metals X, Y and Z were put in turn into aqueous solution of the other two. X + Salt of Y (or Z) = Y (or Z) + Salt of X. Which observation is probably incorrect?
Options
- AY + Salt of X = No action observed
- BY + Salt of Z = Z + Salt of Y
- CZ + Salt of X = X + Salt of Z
- DZ + Salt of Y = No action observed
Correct answer
C. Z + Salt of X = X + Salt of Z
Step-by-step solution
Given facts is: X is above Z in electrochemical series and thus, Z cannot displace X from its salt while X can replace both Y and Z from their salts. As reactivity order is X > Y > Z.