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 only
II only
III only
I, II, III
Correct answer is C
No explanation has been provided for this answer.
CH3COONa
NH4Cl
NaCl
KCl
Correct answer is B
No explanation has been provided for this answer.
1.57 moldm-3
3.14 moldm-3
6.28 moldm-3
12.56 moldm-3
Correct answer is A
Saturated solution = 3503
mass of salt Z in saturated solution = 55.5g
Number of moles of salt = \(\frac{55.5}{101}\) = 0.55mole
3503 of solution contains 0.55mole
1000cm3 will contain \(\frac{1000 \times 0.55}{350}\) = 1.57mol/dm3
I and II only
II, III and IV only
I, II and III only
I, II. III and IV
Correct answer is B
All others except pressure would affect the equilibrium of the system.
Chemical equilibrium is attained when
All the reactants have been completely used up
The reaction goes to completion
The concentration of reactants and products remain constant
The concentration of reactants and products are equal
Correct answer is C
No explanation has been provided for this answer.