by Sunday | Jan 4 | Chemistry JAMB
A. 1S22S22PX22py22pz03s0 B. 1S22S22PX22py12pz13s0 C. 1S22S22PX12py12pz13s1 D. 1S22S22PX22py22pz03s1 Correct Answer: Option C – 1S22S22PX12py12pz13s1 Explanation Shells and subshells are filled in energy level order, so electrons will fill the 4s subshell before...
by Sunday | Dec 27 | Chemistry JAMB
A. precipitation B. hydration C. hydrolysis D. neutralization Correct Answer: Option D – neutralization Explanation A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to...
by Sunday | Dec 27 | Chemistry JAMB
A. But-1-yne B. 2-methyl But-1-ene C. 3-methyl prop-1-yne D. But-2-ene Correct Answer: Option D – But-2-ene Explanation Isomers of Butene: are But-1-ene, But-2-ene, 2-Methylpropene or 2-methylprop-1-ene
by Sunday | Dec 27 | Chemistry JAMB
GAS CO2 N2 O2 % BY VOLUME 4 72 24 A. CO2 and O2 B. N2 and CO2 C. CO2, O2 and N2 D. O2 and N2 Correct Answer: Option A = CO2 and O2 Explanation The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small...
by Sunday | Dec 27 | Chemistry JAMB
A. in the textile industry B. in the hydrogenation of oils C. as domestic and industrial fuels D. as fine chemicals Correct Answer: Option C – as domestic and industrial fuels Explanation Alkanes are very useful as...
by Sunday | Dec 27 | Chemistry JAMB
A. 4 B. 3 C. 2 D. 1 Correct Answer: Option C – 2 Explanation There are 2 bond pairs in CO₂ and no lone pairs are there.
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