- °Brix is an arbitrary scale used in the sugar industry to measure the concentration of sucrose in an aqueous solution.
- °Baume is used for measuring the density of liquids.
- °API is used in the oil industry to measure the density of petroleum liquids.
- °Twaddle is a scale used for measuring the density of liquids, primarily in the chemical industry.
Conclusion:
The correct answer is °Brix, which is used in the sugar industry to measure the concentration of sugar.
List-I (Sol) | List-II (Method of preparation) |
---|---|
A) \( \text{As}_2\text{S}_3 \) | I) Bredig's arc method |
B) \( \text{Au} \) | II) Oxidation |
C) \( \text{S} \) | III) Hydrolysis |
D) \( \text{Fe(OH)}_3 \) | IV) Double decomposition |
A closed-loop system has the characteristic equation given by: $ s^3 + k s^2 + (k+2) s + 3 = 0 $.
For the system to be stable, the value of $ k $ is: