by Sunday | Mar 17 | Chemistry WAEC
Equal masses of calcium trioxocarbonate(iv) were added to dilute hydrochloric acid at the temperature specified. Under which of the following conditions would the reaction be slowest? A. Calcium trioxocarbonate (IV) chips a 20°C B. CalcIum trioxocarbonate (IV) chips...
by Sunday | Mar 17 | Chemistry WAEC
A. 432g B. 108g C. 54g D. 27g Correct Answer: Option D = 27g Explanation Ag + e → Ag 1 mole of Ag+ = 108 i.e 108 X 1 X 96500 But, 24,125C will produce ( 108 X 24,125 ) / ( 1 X 96500) Ag =...
by Sunday | Mar 17 | Chemistry WAEC
A. 0 mole A. 3 moles B. 1 mole C. 2 moles Correct Answer: Option B = 1 mole Explanation Fe2+ → Fe3+ The pale green Fe2+ is oxidized to orange Fe3+ because it loses an electron.
by Sunday | Mar 17 | Chemistry WAEC
i. Carbon ii. Hydrogen III. Carbon (II) oxide A. I only B. I and II only C. I and III only D. II and III only Correct Answer: Option C – I and III only
by Sunday | Mar 17 | Chemistry WAEC
A. Starch B. Glycogen C. Protein D. Fats Correct Answer: Option C – Protein Explanation – A polypeptide is defined as a polymer of amino acids joined together by peptide bonds. – Proteins are polymers of amino...
by Sunday | Mar 17 | Chemistry WAEC
A. Sodium hydroxide B. Hydrochloric acid C. Ethylene D. Ammonia Correct Answer: Option B – Hydrochloric acid Explanation – Fine chemicals are complex, single, pure chemical substances, produced in limited quantities. – Heavy chemicals are produced...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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