Advertisements
Advertisements
प्रश्न
Write the molecular formulae of the following compound.
Sodium aluminate
Advertisements
उत्तर
Sodium aluminate- NaAlO2
APPEARS IN
संबंधित प्रश्न
Define the Ore.
Which of the following pairs will give displacement reactions?
Name the method by which aluminium metal is extracted.
Name the chemical compound which is electrolysed in molten state to obtain sodium metal. Which gas is produced in this process?
How is copper extracted from its sulphide ore (copper glance), Cu2S? Explain with equations of the reactions involved.
The two metals which can be extracted just by heating their sulphides in air are ______.
Calamine ore can be used to extract one of the following metals. This metal is:
State why aluminium is extracted from its oxide by electrolysis while copper, lead, iron by reducing agents and mercury and silver by thermal decomposition.
Aluminum is used in thermite welding:
what is ignition mixture?
Name the following:
The mixture of materials fed into a furnace to extract a metal.
What is meant by concentration of ores?
Explain the following:
Galvanization protects iron from rusting.
How many valence electrons are present in metals ?
State three objectives achieved during the roasting of ores.
Zinc blende is converted to oxide by ______ process.
Right or wrong sentence?
In the electrolytic dissipation method of alumina, the lining of graphite acts as an anode.
Right or wrong sentence?
The electrolysis of alumina combines fluorite and cryolite to increase the solubility in the precipitation method.
Explain the difference between Bayer’s process and Hall’s process by explaining the Bayer’s process.
Which of the following ore is concentrated by the Froth floatation process?
During extraction of metals, electolytic refining is used to obtain pure metals.
(a) Which material will be used as anode and cathode for refining of silver metal by this process?
(b) Suggest a suitable electrolyte also.
(c) In this electrolytic cell, where do we get pure silver after passing electric current?
