Q: The amount of standard soap solution required to obtain a permanent lather with a water sample of known volume with constant shaking determines the total hardness in:
- A. Dr. Clark's process
- B. Hehner's process
- C. William's process
- D. Durkheim's process
Correct Answer:
Option A - Dr. Clark's process – It is based on that hardness producing substance react with soap and form insoluble substance react leather is produced, So total hardness is found by determining the standard soap solution required to obtain a permanent leather with the water sample of known volume with constant shaking.
A. Dr. Clark's process – It is based on that hardness producing substance react with soap and form insoluble substance react leather is produced, So total hardness is found by determining the standard soap solution required to obtain a permanent leather with the water sample of known volume with constant shaking.
Explanations:
Dr. Clark's process – It is based on that hardness producing substance react with soap and form insoluble substance react leather is produced, So total hardness is found by determining the standard soap solution required to obtain a permanent leather with the water sample of known volume with constant shaking.Address
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