WAEC SSCE - Chemistry - 2015 (Objective)
Question 1 Report
Answer Details
Question 2 Report
Answer Details
Question 3 Report
Answer Details
Question 4 Report
Answer Details
Question 5 Report
Answer Details
Question 6 Report
Answer Details
Question 7 Report
Answer Details
Question 8 Report
SO42-(aq) + 2H+(aq) + ye- \(\to\) SO42-(aq) + H2O(1).
The value of y in the equation is
Answer Details
Question 10 Report
Answer Details
Question 11 Report
Answer Details
Question 12 Report
Answer Details
Question 13 Report
Answer Details
Question 14 Report
Answer Details
Question 15 Report
Consider the following reaction equation:
C2H4(g) + 3O2(g) \(\to\) 2CO2(g) + 2H2O(g)
The volume of CO2(g) produced at s.t.p when 0.05 moles of C2H4(g) was burnt in O2(g) is
[Molar Volume of gas = 22.4dm3
Answer Details
Question 16 Report
Answer Details
Question 17 Report
An example of an acid salt is
Answer Details
Question 18 Report
Answer Details
Question 19 Report
The following diagram illustrates the rate curve that was obtained when Mg reacted with excess dilute HCl.
The diagram became horizontal at X because
Answer Details
Question 20 Report
[H = 1.00, C = 12.0, O = 16.0]
Answer Details
Question 21 Report
I. Temperature II. rate of condensation III. Cohesive forces holding the particles together.
Question 22 Report
Answer Details
Question 23 Report
i. Protein ii. Fat iii. Polythene
Answer Details
Question 24 Report
When a reaction is endothermic,
Question 25 Report
Answer Details
Question 26 Report
Answer Details
Question 28 Report
Question 30 Report
CuO(s) + H2(g) \(\to\) Cu(s) + H2O(1)
Which substance is oxidized?
Answer Details
Question 31 Report
Answer Details
Question 32 Report
[Avogadro's number = 6.02 x 1023]
Answer Details
Question 33 Report
Answer Details
Question 34 Report
Which of the following pairs of compounds belongs to the same homologous series?
Answer Details
Question 35 Report
Answer Details
Question 36 Report
Answer Details
Question 37 Report
Answer Details
Question 38 Report
Answer Details
Question 39 Report
Answer Details
Question 41 Report
2SO2(g) + O2(g) \(\rightleftharpoons\) 2SO3(g)
The addition of more O2(g) to the system will shift the equilibrium position to the
Answer Details
Question 43 Report
Answer Details
Question 44 Report
Answer Details
Question 45 Report
The Van der waals' forces are dominant intermolecular forces in_______?
Answer Details
Question 46 Report
Answer Details
Question 47 Report
[H = 1.00, C = 12.0, O = 16.0, S = 32.0, Cl = 35.5]
Answer Details
Question 49 Report
Answer Details
