by Sunday | Dec 10 | Chemistry WAEC
A. alkalis B. acids C. bases D. salts Correct Answer: Option D D. salts Explanation The word “halogen” is a Greek word meaning salt former, because they form salts when they react with metals eg NaCl.
by Sunday | Dec 10 | Chemistry WAEC
A. Evolution of ammonia when heated with ammonium salts B. Evolution of carbon dioxide gas when added to a trioxocarbonate (IV) salt C. Formation of salt and water with alkalis D. Formation of salt and hydrogen gas with reactive metals Correct Answer: Option A A....
by Sunday | Dec 10 | Chemistry WAEC
A. CH B. CH2 C. CH3 D. CH4 Correct Answer: Option B Explanation The percentage of Carbon in the compound is (100 – 14.3)% = 85.7% C : H 85.7/12.0 : 14.3/1.0 7.14 : 14.3 7.14/7.14 : 14.3/7.14 ≊1:2 Therefore, the empirical formula is...
by Sunday | Dec 10 | Chemistry WAEC
A. SO3 B. NO2 C. Co2 D. CO Correct Answer: Option D D. CO Explanation The compound CO is treated as a neutral oxide, though in truth, it is slightly acidic. Regardless of this, within the options supplied, CO is the best option...
by Sunday | Dec 10 | Chemistry WAEC
A. the solvent B. dissolved solute particles C. the saturated solution D. insoluble solute particles Correct Answer: Option C C. the saturated solution Explanation A solution that is in equilibrium with undissolved solute is said to be...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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