WHEN SODIUM HYDROXIDE SOLUTION IS ADDED TO A SOLUTION OF ZINC SALT, THE WHITE PRECIPITATE FORMED RE-DISSOLVE IN EXCESS SODIUM HYDROXIDE BECAUSE
A. sodium hydroxide is a strong alkali B. sodium is more reactive than zinc C. zinc is more reactive than sodium D. zinc hydroxide is amphoteric ✓ E. zinc hydroxide is unstable The answer to the question is: D. zinc hydroxide is amphoteric When sodium…
DRAINAGE
Drainage is a process whereby excess water in the soil is removed artificially to promote good farming activities. In other words, drainage is the withdrawal of excess water from the soil while at the same time retaining adequate reserves to…