by Sunday | Sep 13 | Chemistry JAMB
A. FeS B. CuS C. ZnS D. Na2S Correct Answer: Option B – CuS Explanation Sulphides like PbS (lead (II) sulphide) and CuS (copper (II) sulphide) are insoluble in acidified solutions.
by Sunday | Sep 13 | Chemistry JAMB
A. ethene B. propane C. methane D. butane Correct Answer: Option A – ethene
by Sunday | Sep 13 | Chemistry JAMB
A. 0°C B. -100°C C. -273°C D. -373°C Correct Answer: Option C = -273°C
by Sunday | Sep 13 | Chemistry JAMB
A. 0.89 mol B. 1.90 mol C. 3.80 mol D. 5.70 mol Correct Answer: Option A – 0.89 mol
by Sunday | Sep 13 | Chemistry JAMB
2HCl + CaCO3 → CaCl2 + H2O + CO2 A. Increasing the concentration of the acid B. Increasing the surface area of CaCO3 C. A and B D. Reducing the concentration of the acid Correct Answer: Option C – A and B Explanation The following factors increase the reaction...
by Sunday | Sep 13 | Chemistry JAMB
A. Enthalpy change B. None of the above C. Gibb’s free energy D. Entropy Correct Answer: Option C – Gibb’s free energy Explanation Gibb’s free energy is the fraction of the total energy of a system that accounts for how much useful work can be...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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