by Sunday | Aug 22 | Chemistry WAEC
A. soften the water B. filter the water C. decolorize the water D. destroy the germs in the water E. coagulate colloidal particles in the water Correct Answer: Option B – filter the water
by Sunday | Aug 22 | Chemistry WAEC
A. oxygen B. nitrogen C. water vapour D. carbon (IV) oxide E. noble gases Correct Answer: Option A – oxygen
by Sunday | Aug 22 | Chemistry WAEC
Use the following information to answer this question. Compound X was boiled with concentrated hydrochloric acid for a long time. One of the products was found to be a sugar. What type of reaction was involved between compound X and concentrated hydrochloric acid? A....
by Sunday | Aug 22 | Chemistry WAEC
Use this following information to answer this question. Compound X was boiled with concentrated hydrochloric acid for a long time. One of the products was found to be a sugar. Compound X was probably A. rubber B. polyethene C. nylon D. cellulose E. ethanol Correct...
by Sunday | Aug 22 | Chemistry WAEC
A. calcium oxide B. calcium carbide C. calcium hydrogentrioxocarbonate (IV) D. trioxocarbonate (IV) acid E. calcium trioxocarbonate (IV) Correct Answer: Option C – calcium hydrogentrioxocarbonate (IV)