A. Water treatment
B. Glass manufacture
C. Hydrogenation of fatty oil as a catalyst
D. Development of exposed photographic plate
Correct Answer: Water treatment ✔
Last Updated: February 14, 2019
A. Water treatment
B. Glass manufacture
C. Hydrogenation of fatty oil as a catalyst
D. Development of exposed photographic plate
Correct Answer: Water treatment ✔
Last Updated: February 14, 2019