Chemical Properties of Metals

The equations below show four chemical reactions.
$$\begin{gathered} \left(\mathrm{i}\right). \mathrm{Copper} \mathrm{sulphate} + \mathrm{Zinc} \to \mathrm{Zinc} \mathrm{sulphate} + \mathrm{Copper} \\ \left(\mathrm{ii}\right). \mathrm{Copper} \mathrm{sulphate} + \mathrm{Iron} \to \mathrm{Iron} \mathrm{sulphate} + \mathrm{Copper} \\ \left(\mathrm{iii}\right).\mathrm{Iron} \mathrm{sulphate} + \mathrm{Copper}\to \mathrm{No} \mathrm{reaction} \\ \left(\mathrm{iv}\right). \mathrm{Zinc} \mathrm{sulphate} + \mathrm{Copper} \to \mathrm{No} \mathrm{reaction} \end{gathered}$$

Why is example (i) regarded as a displacement reaction? Explain your answer.

The equations below show four chemical reactions.
$$\begin{gathered} \left(\mathrm{i}\right). \mathrm{Copper} \mathrm{sulphate} + \mathrm{Zinc} \to \mathrm{Zinc} \mathrm{sulphate} + \mathrm{Copper} \\ \left(\mathrm{ii}\right). \mathrm{Copper} \mathrm{sulphate} + \mathrm{Iron} \to \mathrm{Iron} \mathrm{sulphate} + \mathrm{Copper} \\ \left(\mathrm{iii}\right).\mathrm{Iron} \mathrm{sulphate} + \mathrm{Copper}\to \mathrm{No} \mathrm{reaction} \\ \left(\mathrm{iv}\right). \mathrm{Zinc} \mathrm{sulphate} + \mathrm{Copper} \to \mathrm{No} \mathrm{reaction} \end{gathered}$$

Zinc will react with dilute Sulphuric Acid to form _____ salt and hydrogen gas

Why is rusting not seen in every metal?

What happens when zinc sulphate reacts with iron?

Why zinc can not be replaced by copper?

Why copper can not displace zinc from its solution?

A pop sound is formed when hydrogen gas is burnt.

How do metals react with water?

Magnesium oxide is basic in nature.

The rusting of copper causes a green coating on its surface.

Write the chemical reaction of copper with moist air.

Rust is acidic in nature.

What is the nature of rust (acidic or basic)?

How painting and oiling help to prevent corrosion?

Painting and oiling can be used for the prevention of corrosion.

Which metal is preferred for collecting hydrogen from steam? Write the balanced equation for the reaction.

Write the reaction of steam with red hot iron.

What happens when calcium reacts with water?

Arrange the following metals in the increasing order of their reactivity.

$\mathrm{Fe}, \mathrm{Zn}, \mathrm{Ca}, \mathrm{Au}$.