alleryStart learning →Which of these is a typical depressant in froth flotation?
AStarch
BPine oil
CXylenol
DPolyglycol
Answer & Solution
Correct answer: A. Starch
Starch binds to unwanted components so the collector is not wasted on them.
Keep practising Extractive Metallurgy
Browse all Extractive Metallurgy questions for Bihar Board Class 12 (Science), or explore more Chemistry topics.
Related questions
Flotation is used to purify which compound from sodium chloride and clay?Which collectors have been used for oxide minerals in flotation?What are the minerals that do not float into the froth called?What is the first flotation stage, which gives a rougher concentrate, called?Which substance is added as a frother to stabilise foam in flotation?Which class of salts is particularly popular as collectors for sulfide minerals?Froth flotation separates minerals from gangue by exploiting differences in what?What does froth flotation selectively separate?