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Temporary and permanent hardness and methods of softening hard water - Jamb Chemistry Past Questions and Answers

Jamb Chemistry Past Questions

Jamb Past Questions and Answers on Temporary and permanent hardness and methods of softening hard water

Question 1:

JAMB 2019

A sample of hard water contains some calcium sulphate and calcium hydrogen carbonate. The total hardness may therefore be removed by

A. Boiling the water
B. Adding excess calcium hydroxide
C. Adding a calculated amount of calcium hydroxide
D. Adding sodium carbonate
E. Adding magnesium hydroxide

View Answer & Explanation

Question 2:

JAMB 1978

View Answer & Explanation

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