Question

A metal M does not evolve h2 gas in reacting with dil. Hcl. It develops a green colour coating on its surface when exposed to moist air for a long time. Which of the following is correct about this metal?
• It will displace Na from Na2SO4
• It will displace Zn from ZnSO4
• Zn will displace M from MSO4
•Ag will displace M from MSO4​

Answer 1

Answer:

Zn will displace M from MSO4

Answer 2

Answer:

option c is the answer for sure