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.
XZ
XZ2
X2Z
X2Z3
X3Z2
Correct answer is D
No explanation has been provided for this answer.
The reaction of hydrochloric acid and calcium trioxocarbonate (IV) produces
calcium chloride, carbon (IV) oxide and water
calcium chloride, and trioxocarbonate (IV) acid
calcium hydroxide, carbon (IV) oxide and chlorine gas
calcium hydroxide, carbon (IV) oxide and water
calcium metal and water.
Correct answer is A
No explanation has been provided for this answer.
Boyle’s law
Collision theory
Laws of chemical combination
Molecular motion in liquids and gases
Vibrational motion in liquids.
Correct answer is D
No explanation has been provided for this answer.
A chemical system is at equilibrium when
δ G is positive
δ G is zero
δ S is negative
δ S is positive
δ S is zero.
Correct answer is B
No explanation has been provided for this answer.
sodium hydroxide is a strong alkali
sodium is more reactive than zinc
zinc is more reactive than sodium
zinc hydroxide is amphoteric
zinc hydroxide is unstable
Correct answer is D
No explanation has been provided for this answer.