Advertisements
Advertisements
प्रश्न
Chemical formula of rust is ______
पर्याय
FeO.xH2O
FeO4.xH2O
Fe2O3.xH2O
FeO
Advertisements
उत्तर
The chemical formula of rust is Fe2O3.xH2O.
APPEARS IN
संबंधित प्रश्न
Name the methods used for purification?
State two properties of brass that render it more useful for some purpose than its components.
The following is a sketch of an electrolytic cell used in the extraction of aluminium :
(a) What is the substance of which the electrode A and B are made?
(b) At which electrode (A or B) is aluminium formed?
(c) What are the two aluminium compounds in the electrolyte C?
(d) Why is it necessary for electrode B to be continuously replaced?
Cassiterite is a copper ore.
Write scientific reason.
Magnetic separation method is used to separate the magnetic ingredients in the ores.
Explain concept with example/explain with the help of a balanced equation.
Gangue
Identify the following method of concentration of ores and explain briefly.
Explain the froth floatation method with a neat labelled diagram.
Observe the figure and name and explain in brief the following method:
Which of the following methods is used to separate wolframite and stannic oxide present in cassiterite?
