When copper powder is heated with concentrated sulphuric ...
When copper powder is heated with concentrated sulphuric acid, the gas produced is?
hydrogen sulphide
sulphur dioxide
sulphur trioxide
hydrogen pentasulphide
sulphur pentoxide
Correct answer is B
No explanation has been provided for this answer.
The determination of heat of combustion is carried out with ...
A good drying agent should be ...
The IUPAC nomenclature for the compound above is ...
The oxide that remains unchanged when heated in hydrogen is? ...
Which of the following statements is true? ...
The industrial preparation of hydrogen gas from water gas is referred to as ...