by Sunday | Sep 14 | Chemistry JAMB
A. elliptical B. spiral C. circular D. spherical Correct Answer: Option D – spherical Explanation The shape of the S-orbital is spherical.
by Sunday | Sep 14 | Chemistry JAMB
A. be very reactive and will attack ozone B. be non-reactive and will not attack ozone C. not change the level of ozone in the atmosphere D. increase the level of ozone in the atmosphere Correct Answer: Option A – be very reactive and will attack ozone...
by Sunday | Sep 14 | Chemistry JAMB
A. Evaporation B. Distillation C. Filtration D. Precipitation Correct Answer: Option B – Distillation Explanation Distillation is the process of separating the components or substances from a liquid mixture by using selective boiling and...
by Sunday | Sep 14 | Chemistry JAMB
A. boiling the water B. adding excess calcium hydroxide C. adding a calculated amount of calcium hydroxide D. adding sodium carbonate Correct Answer: Option D – adding sodium carbonate Explanation its D because when sodium carbonate reacts with calcium...
by Sunday | Sep 14 | Chemistry JAMB
A. disintegration B. polymerization C. cracking D. degradation Correct Answer: Option C – cracking Explanation Cracking is the breakdown of a large alkane into smaller, more useful alkenes. Simply put, hydrocarbon cracking is the process of breaking a long-chain...
by Sunday | Sep 14 | Chemistry JAMB
A. Epson salt B. Limestone C. Clay D. Urea Correct Answer: Option C – Clay Explanation Between the five main minerals found in clay, kaolinite is the most common. Kaolinite holds the chemical composition Al2Si2O5(OH)4 and is an aluminum silicate material with a...