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प्रश्न
In the extraction of aluminium: Draw the diagram for the extraction of aluminium.
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उत्तर
Extraction of aluminium:
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संबंधित प्रश्न
Give reasons.
Aluminium is a highly reactive metal, yet it is used to make utensils for cooking.
Write the steps involved in the extraction of pure metals in the middle of the activity series from their carbonate ores.
How is copper extracted from its sulphide ore? Explain the various steps supported by chemical equations. Draw labelled diagram for the electrolytic refining of copper.
Name a reducing agent that may be used to obtain manganese from manganese dioxide.
Name the method by which aluminium metal is extracted.
How is sodium metal extracted? Explain with the help of equation of the reaction involved.
Which gas is produced during the extraction of aluminium? At which electrode is this gas produced?
Calamine ore can be used to extract one of the following metals. This metal is:
(a) copper
(b) mercury
(c) aluminium
(d) zinc
Zinc blende ore can be converted into zinc oxide by the process of:
(a) roasting
(b) hydrogenation
(c) chlorination
(d) calcination
Which metal can be extracted from the following ore?
bauxite
Give the principles of the hydrolytic method.
Write equations for each of the above metal which reacts with water.
Complete the incomplete statement with missing word:
Metals form positive ions while non- metals ______.
Arrange the metals of copper, iron, magnesium, sodium and zinc in the decreasing order of reactivity.
Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting point is known as ______.
Explain the following reaction with the balanced equation.
Sodium aluminate reacts with water
Explain the following reaction with the balanced equation.
Zinc carbonate is heated strongly in limited supply of air
Explain concept with example/explain with the help of a balanced equation.
Calcination
Explain in brief types of extraction of moderately reactive metals according to their reactivity.
Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin, Copper, etc. are reduced by using:
