Which gas has a pungent smell that causes choking and coughing?

Which metal reacts with cold water violently?

Which acid is formed when sulfur dioxide reacts with water?

Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
$(i)$ Good thermal conductivity
$(ii)$ Good electrical conductivity
$(iii)$ Ductility
$(iv)$ High melting point

Which metal is the second most abundant metal found on Earth?

What happens when carbon dioxide is dissolved in water at high pressure?