Advertisements
Advertisements
Question
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.
Advertisements
Solution
Purple colour of potassium permanganate gets discharged.
APPEARS IN
RELATED QUESTIONS
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 equation for the following conversion: Aluminium to aluminium nitride.
Name oxide of one metal which is reduced by (give equation): Reduction with carbon
Give the chemical name and formula of ‘cryolite’.
Write balanced equation for the following reaction:
Reduction of iron (III) oxide by carbon monoxide.
4 tones of bauxite, 150 Kg of sodium hydroxide and 600 Kg of graphite.
The aluminium compound in bauxite is aluminium oxide and the main impurity is iron (II) oxide. Aluminium is obtained by the electrolysis of aluminium oxide dissolved in cryolite.
(a) When bauxite is treated with sodium hydroxide solution, what happens to:
(i) the aluminium oxide?
(ii) The iron (III) oxide?
Name the following:
The compound formed by the reaction between calcium oxide and silica.
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 ________
Steel is an alloy of iron and ______.
