by Sunday | Dec 9 | Chemistry WAEC
A. 1:1 B. 1:2 C. 2:1 D. 2:3 Correct Answer: Option A A. 1:1 Explanation 1g of Hydrocarbon = 0.93g of Carbon, therefore, Hydrogen = (1 – 0.93)g = 0.07g C : H 0.93 : 0.07 0.93/12 : 0.07/1 0.078 : 0.07 0.078/0.07 : 0.07/0.07...
by Sunday | Dec 9 | Chemistry WAEC
A. pure samples of the same compound contain the same elements combined in the same proportion by mass B. pure samples of substances are in the same proportion by mass C. chemical compounds are pure because they contain the same elements D. matter can neither be...
by Sunday | Dec 9 | Chemistry WAEC
A. increases as nuclear charge increases B. decreases as nuclear charge increases C. decreases as nuclear charge decreases D. remains constant as nuclear charge increases Correct Answer: Option B B. decreases as nuclear charge...
by Sunday | Dec 9 | Chemistry WAEC
A. Centrifugation B. Filtration C. Chromatography D. Distillation Correct Answer: Option A
by Sunday | Dec 9 | Chemistry WAEC
2FeCl3+H2S→2FeCl2+2HCl+S A. +2 to +3 B. 0 to +2 C. +3 to +2 D. +3 to 0 Correct Answer: Option C Explanation The oxidation number of Iron in FeCl3 = +3. The oxidation number in FeCl2 = +2.
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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