by Sunday | Sep 15 | Chemistry JAMB
A. trigonal planar B. octahedral C. square planar D. tetrahedral Correct Answer: Option A – trigonal planar Explanation The ammonia molecule has a trigonal pyramidal shape with the three hydrogen atoms and an unshared pair of electrons attached to the nitrogen...
by Sunday | Sep 15 | Chemistry JAMB
A. endothermic B. exothermic C. reversible D. ionic Correct Answer: Option B – exothermic Explanation When ΔH is negative, heat is liberated to the surrounding and it connotes an exothermic reaction. ΔH =...
by Sunday | Sep 15 | Chemistry JAMB
A. low pressures and lower temperatures B. low temperatures and high pressures C. high pressures and high temperatures D. low pressure and high temperatures Correct Answer: Option D – low pressure and high temperatures Explanation At high temperature and low...
by Sunday | Sep 15 | Chemistry JAMB
A. A saturated solution B. an acidic solution C. a buffer solution D. an alkaline solution Correct Answer: Option D – an alkaline solution Explanation This is a solution formed from the hydrolyses of an alkali in...
by Sunday | Sep 15 | Chemistry JAMB
A. CH3COOH B. CH3COCH3 C. CH3CH2OCH2CH3 D. CH2CHO Correct Answer: Option D – CH2CHO Explanation C2H5OH → CH3CHO → CH3COOH Ethanol…..oxidation Ethanal……..Ethanoic Acid Primary alcohol oxidizes to aldehyde and later to carboxylic acid. Secondary...
by Sunday | Sep 14 | Chemistry JAMB
A. O2 and H2O B. Ar and CO2 C. CO2 and H2O D. O2 and CO2 Correct Answer: Option A – O2 and H2O Explanation Rust is an iron oxide, a usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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