Question 1:
Describe the biochemical consequences of lead, mercury and cyanide.
Question 2:
With the use of the chemical equations, illustrate the setting and hardening of the cement.
Question 3:
What do you understand by the term Portland cement? Why is it called so? Provide its composition.
Question 4:
Write down the significant properties of the refractories.
Question 5:
Write down the different methods of producing metal powders.
Question 6:
Write down a note on the categorization of explosives.