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.
NH3 + H3O+
→ NH4+ + H2O. It may be deduced from the reaction above that?
a redox reaction has occurred
H3O+ acts as an oxidizing agent
H3O+ acts as an acid
water acts as an acid
Correct answer is C
No explanation has been provided for this answer.
pH values are equal
HCI solution has a higher pH
sum of the values is 14
ethanoic acid solution has a higher pH
Correct answer is D
No explanation has been provided for this answer.
deliquescene
hygroscopy
effervescence
efflorescence
Correct answer is D
No explanation has been provided for this answer.
Water can be identified by the use of?
anhydrous copper (II) tetraoxosulphate (VI)
anhydrous sodium trioxocarbonate (IV)
potassium heptaoxochromate (VII)
copper (II) trioxocaronate (IV)
Correct answer is A
Anhydrous CuSO4 will turn blue with water
The air around a petroleum refinery is most likely to contain?
CO2, SO3 and N2O
CO2, CO and N2O
SO2, CO and NO2
PH3 H2O and CO2
Correct answer is C
No explanation has been provided for this answer.