A standard test for determination of hardness in water is termed as ______________ test?
Correct answer: A. EDTA
- A. EDTA
- B. Electometric
- C. Total count
- D. Presumptive
Explanation
The EDTA complexometric titration is the standard laboratory test for total water hardness because EDTA binds the calcium and magnesium ions. Electrometric methods measure other water properties, while presumptive and total-count tests concern microorganisms.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
Removal of ______________ results from the disinfection of water?
Which of the following is not a natural source of air pollution ?
Which of the following is the most widely used disinfectant in water treatment ?
The function of skimming tank in sewage treatment is to remove _____________ substances?
Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of________________?
Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur ?