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प्रश्न
Name a non-metallic element which has a metallic lustre
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उत्तर
Iodine
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संबंधित प्रश्न
Name the following:
A metal oxide that can be reduced by hydrogen.
How is the following metallic oxide reduced? Write equations:
Iron (ll) oxide
Give reason for the following:
Carbon anodes are used in the electrolytic extraction of aluminium.
Give the chemical name and formula of ‘cryolite’.
Name a non-metallic element which is a liquid at ordinary temperatures
What is the type of bonding expected in a metallic chloride?
If fused metallic chloride is electrolyzed, at which electrode would the metal be obtained?
Answer the following question :
Name the process used for the enrichment of sulphide ore.
- 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.
Give the equation for the reduction of Iron (III) oxide.
