by Sunday | Sep 14 | Chemistry JAMB
A. NaOH B. Ca(OH)2 C. KOH D. AI(OH)3 Correct Answer: Option D = AI(OH)3 Explanation Aluminium hydroxide is not soluble in water because it is polymeric and it also has high lattice energy and therefore it is hard to break bonds in this compound. So, water cannot...
by Sunday | Sep 14 | Chemistry JAMB
A. strength of the core B. position of the metal in the electrochemical series C. source of the core D. position of the metal in the periodic table Correct Answer: Option B – strength of the core Explanation The method used to extract a metal from its ore...
by Sunday | Sep 14 | Chemistry JAMB
A. increase with an increase in temperature B. decrease with an increase in temperature C. decrease with a decrease in temperature D. not be affected by changes in temperature Correct Answer: Option A – increase with an increase in temperature Explanation For...
by Sunday | Sep 14 | Chemistry JAMB
A. Co B. Mn C. Al D. Mg Correct Answer: Option C – Al Explanation Constituents of duralumin are: Al, Cu, Mg, Mn. Constituents of Alnico are: Al, Ni and Co In 1909, the alloy of duralumin was discovered by Alfred Wilon consisting of 94% Al, 4% Cu, 1% Mg and 1%...
by Sunday | Sep 14 | Chemistry JAMB
A. saponification B. dehydration C. esterification D. hydrolysis Correct Answer: Option C – esterification Explanation Esterification is a chemical reaction that forms at least one ester (= a type of compound produced by reaction between acids and alcohols)....
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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