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.
an increase in temperature favours the forword reaction
an increase in pressure favours the backward reaction
both pressure and temperature muct be increased to favour the forward reaction
a decrease in temperature will favour the forward reaction
a decrease in pressure and an increase in temperature will favour the forward reaction
Correct answer is D
No explanation has been provided for this answer.
Starch can be converted to ethyl alcohol by
distillation
fermentation
isomerization
cracking
cooking
Correct answer is B
No explanation has been provided for this answer.
dissolving it in water, recrystallizing it and then drying in the oven
passing it through a concentrated aqueous solution of sodium hydroxide
passing it through calcium oxide
passing it through concentrated sulphuric acid
passing it through anhydrous calcium choride
Correct answer is C
No explanation has been provided for this answer.
In which of the following reactions is sulphur dioxide acting as an oxidizing agent?
SO 2 + 2HNO3 →H2SO4 + NO2 + Heat
2SO2 + 2H2O + O2→ 2H2SO4
SO2 + 2H2O + CI2→ H2SO4 + 2HCI
SO2 + 2H2S → 3S + 2H2O
SO2 + H2O → H2SO3
Correct answer is D
No explanation has been provided for this answer.
a compound wich has no water of crystallization
an oxide whose solution in water has a PH greater than 7
an oxide whose solution in water has a PH less than 7
an oxide that has hydrogen atoms
an amphoteric oxide
Correct answer is A
No explanation has been provided for this answer.