JAMB UTME - Chemistry - 2000
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
MnO4(aq) + 8H+(aq) + Y → Mn2+(aq) + 4H2O(l)
Y in the equation above represents
Question 8 Report
N2(g) + O2(g) ↔ 2NO(g); ΔH = + 180.6 kJ mol-1
In the reaction above, increase in temperature will
Answer Details
Question 9 Report
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
The shapes of CO\( _2 \), H\( _2 \)O and CH\( _4 \) respectively are
Answer Details
Question 16 Report
Answer Details
Question 17 Report
The ratio of the initial to the final pressure of a given mass of gas is 1:1.5. Calculate the final volume of the gas if the initial volume was \(3000\text{cm}^3\) at the same temperature
Answer Details
Question 19 Report
Answer Details
= -log[-0.3979 + 1]
= 13.40
Question 20 Report
Answer Details
Question 21 Report
Answer Details
Question 22 Report
Answer Details
Question 23 Report
Question 24 Report
Answer Details
Question 27 Report
Answer Details
Question 28 Report
Answer Details
Question 29 Report
0.46g of ethanol when burned raised the temperature of 50g of water by 14.3K. Calculate the heat of combustion of ethanol.
[C = 12, O = 16, H = 1, Specific heat capacity of water = 4.2 jg-1K-1]
Answer Details
= -50 * 4.2 * 14.3
= -300 KJ mol-1
Question 30 Report
Answer Details
Question 31 Report
Use the option above to answer this question. The graph that describes a zero order reaction is
Answer Details
Question 32 Report
HCL(aq) + H2O(l) H3O+(aq) + Cl-(aq)
In the reaction above, Cl-(aq) is the
Answer Details
Question 33 Report
Answer Details
Question 34 Report
The diagram above is the solubility curve of a solute, X. Find the amount of X deposited when 500cm3 of a solution of X is cooled from 60oC to 20oC.
Answer Details
Question 35 Report
Answer Details
Question 36 Report
Question 37 Report
Answer Details
Question 38 Report
Answer Details
Question 40 Report
50cm of carbon (II) oxide exploded with 150cm\(^{3}\) of air containing 20% oxygen by volume. Which of the reactants was in excess?
Answer Details
50cm3 → 25cm3
20% × 150cm3
30cm3 is the volume of oxygen available for the reactions.
But only 25cm3 is required, therefore O2 is in excess.
Question 42 Report
(1/2)Zn2+(aq) + e- → (1/2) Zn(s)
In the reaction above, calculate the quantity of electricity required to discharge zinc.
[F = 96 500 C mol-1]
Answer Details
Question 43 Report
Answer Details
Question 44 Report
Answer Details
Question 45 Report
Answer Details
Question 46 Report
Answer Details
Question 47 Report
Answer Details
Question 48 Report
Answer Details
Question 49 Report
Answer Details
Question 50 Report
