Challenger App
Home
Exams
Questions
Quiz
Notes
Blog
Contact Us
e-Book
×
Home
Exams
▼
Questions
Quiz
Notes
Blog
Contact Us
e-Book
Home
/
Questions
/
Irrigation and environmental engineering
/
Water quality control standards
No.1 PSC Learning App
★
★
★
★
★
1M+ Downloads
Get App
The pH value of strong caustic soda is about
A
7
B
13
C
1
D
5
Answer:
B. 13
Related Questions:
Which method is used to measure the colour of water?
The bacteria that can survive in the presence and absence of oxygen are called
To test turbidity of polluted waterin the field.................. is used)
The colour of water is measured on:
The maximum permissible chlorine contents for public supplies should be between: