Advertisements
Advertisements
Question
Give a reason why rust turns moist red litmus blue.
Advertisements
Solution
A suspension of rust is basic in nature and hence turn moist red litmus blue.
APPEARS IN
RELATED QUESTIONS
Which of the following methods is suitable for preventing an iron frying pan from rusting?
What is meant by galvanisation? Why is it done?
Mention two uses of the following metals and non-metals
Iron
Corrosion can be an advantage in some case.Explain ?
Answer the following question.
a) What is meant by corrosion?
b) Write names of any two methods of prevention of corrosion.
c) In which method, metal like copper, aluminium are coated with a thin layer of their oxides by means of electrolysis.
d) Explain this method with diagram.
Give reason for the following:
A suspension of rust is basic in nature.
Complete flow chart given below.

Observe the following diagram and write answers.

- Name the method.
- Explain the method.
- Give two examples of this method.
What is rust?
Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability?
