Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 13 (Q.No. 12)
12.
The concentration of hardness producing cations may be estimated using which one of the following ?
Conductivity meter
pH meter
Spectrophotometer
Flame photometer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Priyanka said:   5 years ago
C is correct
(1)

Rahul Khan said:   6 years ago
A spectrophotometer is the right answer.

Dolls said:   7 years ago
Spectrophotometer is the correct answer. So, C is the right option.

Vikram syal said:   7 years ago
Spectrophotometer is the correct option, I think.

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