Advertisements
Advertisements
Question
Give reason for the following:
A suspension of rust is basic in nature.
Advertisements
Solution
Rust is formed by oxidation of iron in air in presence of moisture. The main constitutent of rust is Iron(III) oxide [Fe2O3.xH2O] which is a metallic oxide. Hence, all metallic oxides are basic in nature. Therefore, a suspension of rust is basic in nature.
APPEARS IN
RELATED QUESTIONS
Explain the terms Corrosion
In one method of rust prevention, the iron is not coated with anything. Which is this method?
Name five methods of preventing rusting of iron.
What are the special properties of stainless steel?
In stainless steel alloy, iron metal is mixed with:
(a) Cu and Cr
(b) Cr and Ni
(c) Cr and Sn
(d) Cu and Ni
Explain with reason:
Roasting is carried out on sulphide ores and not on carbonate ores.
State whether the statement given below is true or false. If false write the correct statement.
Graphite is a lustrous non-metal which conducts electricity.
Find the odd one out and give its explanation.
Write the name.
Method used to prevent corrosion of copper.
A man painted his main gate made up of iron, to
- prevent it from rusting.
- protect it from sun.
- make it look beautiful.
- make it dust free.
Which of the above statement(s) is/are correct?
