Advertisements
Advertisements
प्रश्न
If fused metallic chloride is electrolyzed, at which electrode would the metal be obtained?
Advertisements
उत्तर
Metal would be obtained at cathode.
APPEARS IN
संबंधित प्रश्न
How is the following metallic oxide reduced? Write the equation:
Zinc oxide
Explain with reason:
In the electrolytic reduction of alumina, the graphite anode is gradually consumed.
Name a non-metallic element which forms acidic and neutral oxides
With reference to the reduction of copper (II) oxide , iron (II) oxide, lead (II) oxide and magnesium oxide; place the oxides in order of increasing ease of reduction.[i.e. first write the oxide that is most difficult to reduce and at last, the oxide, that is most easily reduced.]
Answer the following question with respect by hydrogen : Identify the components of the electrolyte other than pure alumina and the role played by each.
Complete the following by selecting the correct option from the choices given :
The metal whose oxide, which is amphoteric, is reduced to metal by carbon reduction ________
- A to F below relate to the source and extraction of either zinc or aluminium:
- Bauxite
- Coke
- Cryolite
- Froth floatation
- Sodium hydroxide solution
- Zinc blende
- Write down the three letters each from the above list which are relevant to
- Zinc
- Aluminium
- Fill in the blanks using the most appropriate words from A to F.
- The ore from which aluminium is extracted must first be treated with ………………. so that pure aluminium oxide can be obtained.
- Pure aluminium oxide is dissolved in ….. to make a conducting solution.
iii. Write the formula of cryolite.
Name two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen.
Give the equations for the reduction of copper oxide.
Give the equation for the reduction of Iron (III) oxide.
