Question

Bhupesh suffered crop failure for few years. When he got the pH of the soil examined, it was about 11.6. Which of the following compounds can he use to treat the soil of his agricultural field?

• A. Ca(OH)2
• B. NaCl
• C. Al2(SO4)3
• D. Zn(OH)2

Answer 1

Answer:

C. Al2(SO4)3

• A pH of 11.6 indicates that the soil is highly alkaline.

• Al2(SO4)3 (aluminum sulfate) is an acidic compound that can be used to lower the pH of alkaline soil