Advertisements
Advertisements
Question
Explain the following:
Galvanization protects iron from rusting.
Solution
Galvanization protects iron from rusting because in galvanization coating of zinc is done over iron articles and zinc being more electropositive would be attacked preferably than iron.
APPEARS IN
RELATED QUESTIONS
Give the name of one ore of iron. Which iron compound is present in this ore? Write its chemical formula.
An ore of manganese metal is:
(a) bauxite
(b) haematite
(c) cuprite
(d) pyrolusite
Which metal can be extracted from the following ore?
Calamine
Aluminum is used in thermite welding:
write reaction for process?
How is the method of extraction of metals high up in the reactivity series different from that for metals in the middle? Why can the same process not be applied for them? Name the process used for the extraction of these metals.
If Cu, Fe, Zn, Al elements are arranged in increasing order of their reactivity then the correct order would be which of the following?
Atomic number of aluminium is _______ and its electronic configuration is _______.
Bauxite reacts with sodium hydroxide in the Bayer’s process.
Give the reaction involved during extraction of zinc from its ore by
- roasting of zinc ore
- calcination of zinc ore
Care must be taken while diluting concentrated nitric acid with water. Why?
