Which of the following organic compounds could be represented by the empirical formula CH2O?
Ethanal
Ethane
Ethanol
Ethanoic acid
Correct answer is D
No explanation has been provided for this answer.
0.05 mole
0.10 mole
0.20 mole
2.00 moles
Correct answer is A
No explanation has been provided for this answer.
The liquid hydrocarbon likely to be found in the fraction of crude oil used for domestic cooking is?
C3H8
C 5H 12
C13H28
C20H42
Correct answer is A
The gas used in gas bottles is LPG – liquefied petroleum gas – which are either propane or butane, flammable hydrocarbons used as fuel for home heating, cooking, hot water and LPG cars and vehicles.
alkanol
benzene
ester
methane
Correct answer is C
No explanation has been provided for this answer.
The enzyme that catalyses the conversion of glucose te ethanol and carbon (IV) oxide is
diastase
maltase
ptyalin
zymase
Correct answer is D
No explanation has been provided for this answer.