Question

what is flux? What is Gangue? What is Roasting? What is disinfectant?​

Answer 1

Answer:

1. the noun flux describes something which constantly changes.
2. commercially valueless material.
3. roasting means cooking something in oven or open fire.
4. disinfectant is a chemical liquid that destroy bacteria.

Answer 2

Answer:

flux: the substance which react with gangue to form a fusible mass which can easily be removed is known as flux

gangue: the unwanted material present in ores mined from earth is called gangue

Roasting: it is the process in which ore is heated in the presence of air so to obtain metal oxides,which can be reduced easily to get free metal.

disinfectant: a substance that destroy bacteria and used for cleaning