Which one is the most reactive halogen?
A). Iodine
B). Bromine
C). Fluorine
D). Chlorine
Fluorine
Fluorine is the most reactive halogen.
1. Which of the following type of coal has the lowest proportion of volatile matter
3. Which of the following is used in welding broken pieces of iron rails and machine parts?
4. The isotope used for the production of atomic energy is
5. The BOD values of water indicate the
6. The pollutant responsible for ozone holes is ________
8. An emulsifier is an agent which