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प्रश्न
Give the chemical name and formula of ‘cryolite’.
Write the formula of cryolite.
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उत्तर
Cryolite is Na3AlF6 and its chemical name is sodium aluminium fluoride.
संबंधित प्रश्न
Name the following:
A metal oxide that can be reduced by hydrogen.
Write a balanced chemical equation for each of the following reactions :
(i) Reduction of copper (II) oxide by hydrogen
Give equation for the following conversion: Ferric oxide to iron.
Name oxide of one metal which is reduced by (give equation): Reduction with heat alone
Name a non-metallic element which forms acidic and neutral oxides
Name a non-metallic element which is a conductor of electricity.
Name the following :
A metal oxide that can be reduced by hydrogen
Complete the following by selecting the correct option from the choices given :
The diavalent metal whose oxide is reduced to metal by electrolysis of its fused salt is ________
Write the observation for the following:
A paper dipped in potassium permanganate solution is put on the mouth of a test tube containing sulphur dioxide gas.
Name two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen.
