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प्रश्न
Write the molecular formulae of the following compound.
Sodium aluminate
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उत्तर
Sodium aluminate- NaAlO2
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संबंधित प्रश्न
Name the following:
Main ore of aluminium.
Define the Ore.
In the extraction of aluminium Write the cathode reaction in electrolytic reduction of alumina.
A zinc ore gave CO2 on treatment with a dilute acid. Identify the ore and write its chemical formula.
Fill in the following blank with suitable word:
The rocky material found with ores is called.............
How is manganese extracted from manganese dioxide, MnO2? Explain with the help of an equation.
Name the chemical compound which is electrolysed in molten state to obtain aluminium metal. Which gas is evolved during this process?
Describe the extraction of zinc metal from its sulphide ore (zinc blende). Write equations of the reactions involved.
Which of the following reactants are used to carry out the thermite reaction required for welding the broken railway tracks?
(a) Al2O3 + Fe
(b) MnO2 + Al
(c) Fe2O3 + Al
(d) Cu2O + Fe
Aluminum is used in thermite welding:
what is thermit?
Define the following term.
Mineral
Name the following:
The process of heating a substance very strongly in such a way that it does not combine with oxygen.
What is galvanized iron.
Complete the incomplete statement with missing word:
Non-metals form acidic oxides while metals form ______.
To protect iron from rusting, it is coated with a thin layer of zinc. Name the process.
Name the methods by which concentrated ore is converted to metallic oxide.
In the electrolytic method, a layer of highly active metal is applied to a less active metal.
Explain the following reaction with the balanced equation.
Zinc oxide is treated with carbon
The highly reactive metals like Sodium, Potassium, Magnesium, etc. are extracted by the ____________.
The given reaction shows one of the processes to extract the metals like Iron and Manganese.
\[\ce{MnO2(s) + Al(s) -> Mn(l) + Al2O3(s) + Heat}\]
Give the reason why the above reaction is known as a thermite reaction.
