Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
i, iii and iv
iii only
ii, iii and i
iv only
Correct answer is D
i, ii will have no effect because the number of mole of reactants(volume) is equal to the number of mole of the product(volume) and iii will also have no effect since the forward reaction which favours the production of hydrogen is exothermic, therefore, the production of hydrogen will be favored by iv only.
The nucleus of the isotopes tritium,contains
two neutrons with no protons
one neutron and one proton
two neutrons and one proton
two neutrons, one proton and one electron
Correct answer is C
No explanation has been provided for this answer.
Which of the following is a measure of the average kinetic energy of the molecules of a substance?
volume
mass
pressure
temperature
Correct answer is D
No explanation has been provided for this answer.
400k
480k
550k
600k
Correct answer is D
No explanation has been provided for this answer.
The fraction of crude oil used as jet fuel is
refinery gas
diesel oil
kerosine
gasoline
Correct answer is C
No explanation has been provided for this answer.