Give a reason for the following:
Alkali metals are good reducing agents.
Alkali metals readily lose electrons from their valence shell and get oxidised. So they behave as good reducing agents.
Name the gas that is produced in the following cases:
At the anode during the electrolysis of acidified water.
Name the gas that is produced in the following cases:
The action of dilute hydrochloride acid on sodium sulphide.
Give a reason for the following:
The conductivity of dilute hydrochloric acid is greater than that of acetic acid.
Name the gas that is produced in the following cases:
Action of cold and dilute nitric acid on copper.
Name the gas that is produced in the following cases:
Sulphur is oxidized by concentrated nitric acid.