by Sunday | Dec 9 | Chemistry WAEC
A. propane B. propanoic acid C. propyne D. propanol Correct Answer: Option C C. propyne Explanation Thus bromine water will be decolorized by alkynes due to the presence of two pi bonds available for the reaction!
by Sunday | Dec 9 | Chemistry WAEC
A. dissolves and the solution becomes supersaturated B. dissolves and the solution becomes unsaturated C. precipitates and the solution remains unchanged D. dissolves and crystals are formed Correct Answer: Option C C. precipitates and the solution remains unchanged...
by Sunday | Dec 9 | Chemistry WAEC
A. 0°C B. 20°C C. 30°C D. 40°C Correct Answer: Option B B. 20°C Explanation From the graph, check for their point of intersection and trace it down to the temperature axis.
by Sunday | Dec 9 | Chemistry WAEC
A. reducing its quantity B. decreasing the external pressure C. distilling it D. increasing the external pressure Correct Answer: Option B B. decreasing the external pressure Explanation The easiest and most drastic way to change the boiling point is by tampering with...
by Sunday | Dec 9 | Chemistry WAEC
A. 0.490g B. 0.049g C. 0.245g D. 0.0245g Correct Answer: Option A Explanation 500cm³=0.005moldm−³ 1000cm³=0.005500×1000cm³=0.010moldm‾³ Molar concentration = mass (in gdm‾³) / molarmass (in gmol‾¹) 0.01moldm‾³ = mass in gdm−398.0gmol−1 (Molar mass of H2SO4 =...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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