by Sunday | Apr 17 | Chemistry NECO
A. CO2 B. H2 C. H2O D. O2 E. O3 Correct Answer: Option E – O3
by Sunday | Apr 17 | Chemistry NECO
A. donating lone pair of electrons B. gaining an electron C. losing an electron D. sharing an electron E. sharing a lone pair of electrons. Correct Answer: Option B – gaining an electron
by Sunday | Apr 17 | Chemistry NECO
A. addition B. carboxylation. C. esterification D. saponification E. substitution Correct Answer: Option A – addition
by Sunday | Apr 17 | Chemistry NECO
A. glycerol B. nylon C. perspex polyethene D. polyethene E. polystyrene Correct Answer: Option A – glycerol
by Sunday | Apr 17 | Chemistry NECO
A. Boyle’s B. Charles’ C. Dalton’s D. Graham’s E. Gay Lussac’s Correct Answer: Option C – Dalton’s