Question

Assertion (A): Magnesium displaces aluminium from its salt solution.
Reason (R): Magnesium is more reactive than aluminium.

• A. Both A and R are true and R is the correct explaination of A.
• B. Both A and R are true and R is the not the correct explaination of A.
• C. A is true but R is false.
• D. A is false but R is true.

Answer 1

The correct option is A Both A and R are true and R is the correct explaination of A.

For a metal to replace another metal from its solution, it has to be more reactive than the other.
The arrangement of metals as per reactivity series is: K > Na > Ca > Mg > Al > Zn > Fe > Pb > H > Cu > Ag > Au.
While magnesium being more reactive than aluminium will displace it from its salt solution.