Which of the following will react further with oxygen to form higher oxide?
NO and H2O
CO and CO2
SO2 and NO
CO2 and H2O
Correct answer is C
No explanation has been provided for this answer.
Oxygen-demanding waste are considered to be a water pollutant because they?
deplete oxygen which is necessary for the survival of aquatic organism
increase oxygen which is necessary for survival of aquatic organism
increase other gaseous substances which are necessary for the survival of aquatic organisms
deplete other gaseous species which is necessary for the survival of aquatic organisms
Correct answer is A
No explanation has been provided for this answer.
CO and SO3
CO and SO2
CO,SO2 and SO3
CO and H2S
Correct answer is B
When fuels containing sulphur are burned, sulphur compounds in the fuel are oxidised to sulphur dioxide while carbon compound are oxidized to carbon monoxide
When steam is passed through red hot carbon, which of the following are produced?
Hydrogen oxygen and carbon (IV) oxide
Hydrogen and carbon (IV) oxide
Hydrogen and carbon (II) oxide
Hydrogen and trioxocarbonate (IV) acid
Correct answer is C
No explanation has been provided for this answer.
The reaction Mg + H2O → MgO + H2 takes place only in the presence of?
excess Mg ribbon
excess cold water
very hot water
steam
Correct answer is D
No explanation has been provided for this answer.