The dispersing agent correction in hydrometer analysis is
- AAlways positive
- BAlways negativeCorrect
- CZero
- DCan be either positive or negative
Solution
Concept
Dispersing agent correction
Step-by-step solution
1. The dispersing agent increases the density of the suspension. 2. So the correction is subtracted (negative).
Explanation
The reading is reduced by the dispersing agent correction.
Why the other options are wrong
It is not positive or zero.
Shortcut
Dispersant: −.
Correct answer: B) Always negative