CHEMISTRY

JAMB 2008 - Question 46

Chemistry 2008 JAMB Past Questions - Question 46: In the course of purifying water for town supply the water is passed through large settlings tanks, containing sodium aluminate (III) to remove?

In the course of purifying water for town supply the water is passed through large settlings tanks, containing sodium aluminate (III) to remove?<br>
In the course of purifying water for town supply the water is passed through large settlings tanks, containing sodium aluminate (III) to remove?
A:
B:
C:
D:
Examkits App

Examkit's JAMB CBT App

Practice JAMB offline with our Online, PC and Mobile App

  • ✅ 25+ years of past questions (2000 to 2025)
  • ✅ Video solutions and explanation to questions
  • ✅ E-library
  • ✅ Study by topic
  • ✅ And more.

Correct Answer

D

Explanation

Potash alum [kAl(SO4)2] n sodium aluminate (ii) (NaHCO2) are added to cause coagulation.

As fine particles to clump together, forming large particles heavy enough to settle at the bottom of the tanks as impurities.