Advertisements
Advertisements
Question
Choose the correct alternative and rewrite the following:
Iron is _____________________.
Options
More reactive than Zn.
more reactive than Al.
less reactive than Cu.
less reactive than Al.
Advertisements
Solution
less reactive than Al
APPEARS IN
RELATED QUESTIONS
Why do we apply paint on iron articles?
What is meant by galvanisation? Why is it done?
Name the metal which is used for galvanising iron.
Explain why, though aluminium is more reactive than iron, yet there is less corrosion of aluminium when both are exposed to air.
Explain why, when a copper object remains in damp air for a considerable time, a green coating is formed on its surface. What is this process known as?
Explain why, the galvanised iron article is protected against rusting even if the zinc layer is broken.
Name a common metal which is highly resistant to corrosion.
A common metal which is highly resistant to corrosion is ______.
If copper is kept exposed to damp air for a considerable time, it gets a green coating on its surface. This is due to the formation of ______.
Bronze is an alloy of ______.
Name the metal which is a constituent of blood pigment?
Identify the process shown in the diagram and explain it in short
Find the odd man out:
Observe the following picture and answer the following questions:
- What is rust?
- Write the chemical formula of rust.
- Write the reaction of oxidation of iron at the anode.
- Write the reaction of oxidation of iron at the cathode.
- What is corrosion?
Write the name.
An alloy of copper and tin-
Complete flow chart given below.
Observe the following diagram and write answers.
- Name the method.
- Explain the method.
- Give two examples of this method.
In ______ process a layer of molten tin is deposited on metals.
