by Sunday | Oct 12 | Chemistry JAMB
A. 243.75 cm³ B. 369.23 cm³ C. 738.46 cm³ D. 1733.36 cm³ Correct Answer: Option B – 369.23 cm³ Explanation P1V1= P2V2 800 * 300 = 650 * V2 V2 = (800 * 300)/650 = 369.23 cm³
by Sunday | Oct 12 | Chemistry JAMB
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g) A. 0.40g B. 0.80g C. 4.00g D. 8.00g Correct Answer: Option C – 4.00g Explanation 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g) Relative molecular mass of NaOH = 23 + 16 + 1 = 40gmol-1 2 X 23g of sodium react with water to produce → 2...
by Sunday | Oct 12 | Chemistry JAMB
A. lower the melting point of the ice B. increase the density of the ice C. make the ice impure D. raise the melting point of the ice Correct Answer: Option A – lower the melting point of the ice
by Sunday | Oct 12 | Chemistry JAMB
A. crystallization B. hydrolysis C. chromatography D. sublimation Correct Answer: Option C – chromatography
by Sunday | Oct 11 | Chemistry JAMB
A. Naturally radioactive B. abundant in nature C. a transition metal D. an isotopic mixture Correct Answer: Option D – an isotopic mixture
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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