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.
Complete hydrogenation of ethyne yields?
benzene
methane
ethane
ethene
propane
Correct answer is C
No explanation has been provided for this answer.
Adding argon to the system
Lowering the temperature
Adding hydrogen to the system
Decreasing the pressure
Increasing the temperature
Correct answer is A
No explanation has been provided for this answer.
Which of the following metals will displace iron from a solution of iron(ll)tetraoxosulphate(lV)?
Copper
Mercury
Silver
Zinc
Gold
Correct answer is D
No explanation has been provided for this answer.
2MnO-4 + 10Cl- + 16H+ → 2Mn2+ + 5Cl2 + 8H2O. Which of the substances serves as an oxidizing agent?
Mn2+
Cl-
H2O
MnO-4
Cl2
Correct answer is D
No explanation has been provided for this answer.
increase in temperature, decrease in pressure
increase in temperature, increase in pressure
decrease in temperature,increase in pressure
decrease in temperature, decrease in pressure
constant in temperature, increase in pressure
Correct answer is A
No explanation has been provided for this answer.