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)....
by Sunday | Sep 14 | Chemistry JAMB
A. crystal lattice formation B. covalent bond formation C. metallic bond formation D. coordinate bond formation Correct Answer: Option B – covalent bond formation Explanation Diamond is a covalent macromolecule, and typical of a covalent substance is an...
by Sunday | Sep 14 | Chemistry JAMB
A. 450cm³ B. 300cm³ C. 200cm³ D. 150cm³ Correct Answer: Option A – 450cm³ Explanation From the dilution law C1V1 = C2V2 C1 = Initial Concentration of NaOH = 0.6M V1 = Initial Volume of NaOH = 300cm³ C2 = Final Concentration of NaOH = 0.4M V2 = Final Volume of...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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