Question Bank
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Which of the following substances is used as a 'Collector' in the froth flotation process?
In the extraction of iron, the function of Limestone is:
Which metal forms a protective layer of oxide that prevents further corrosion?
Wrought iron is the purest form of iron. What is its carbon content?
When iron is reacted with steam, which products are formed?
Which of the following metals is purified by 'Distillation'?
The process of zone refining is based on the principle of:
Which alloy is used for making surgical instruments?
In the extraction of Aluminum, the carbon anode needs to be replaced periodically because:
The most common reducing agent used in the blast furnace for iron extraction is:
Which method is used to separate Galena (PbS) from Zinc Blende (ZnS)?
Which of the following is an example of an acidic flux?
Which of the following metals exhibits the phenomenon of 'Passivity' when treated with conc. HNO3?
How many atoms of Iron are there in one molecule of Magnetite?