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प्रश्न
Iron is _______.
विकल्प
more reactive than zinc
more reactive than aluminium
less reactive than copper
less reactive than aluminium
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उत्तर
Iron is less reactive than aluminium.
APPEARS IN
संबंधित प्रश्न
In the extraction of aluminium: Name the process of concentration of bauxite.
Which of the following pairs will give displacement reactions?
Name one metal which is extracted by:
Electrolytic reduction.
Explain why, an aqueous solution of sodium chloride is not used for the electrolytic extraction of sodium metal.
How is copper extracted from its sulphide ore (copper glance), Cu2S? Explain with equations of the reactions involved.
Give reasons, why aluminum is used in:
painting electric and telegraphic poles
Give reasons, why aluminum is used in:
In aluminiothermy
Answer the following questions based on the extraction of aluminium from alumina by Hall - Heroult’s Process :
Name the electrode, from which aluminium collected.
Define the term:
Slag
How are metals refined by the electrolytic methods?
The following questions relate to the extraction of aluminium by electrolysis.
Explain why it is necessary to renew the anode periodically.
Answer the following question :
What is the difference between calcination and roasting.
Froth floatation process is generally used to concentrate ______ ores.
Observe the given figure of reactivity series of metals and answer the following questions:
Reactivity series of metals
- Name two metals which react with water.
- Name two moderately reactive metals.
- Name the most highly reactive metal and the most less reactive metal.
Atomic number of aluminium is _______ and its electronic configuration is _______.
Extraction of moderately reactive elements is done by _______ and _______ method.
Find the odd one out and give its explanation.
Explain the following reaction with the balanced equation.
Chlorine dissolved in water
Explain the following reaction with the balanced equation.
Zinc sulphide is heated strongly in excess of air
The highly reactive metals like Sodium, Potassium, Magnesium, etc. are extracted by the ____________.
