by Sunday | Sep 14 | Chemistry JAMB
H2S(g) + Cl2(g) → 2HCl(g) + S(g) A. H2S B. S C. HCl D. Cl2 Correct Answer: Option D – Cl2 Explanation H2S(g) + Cl2(g) → 2HCl(g) + S(g) Please note: substance oxidized or reduced are always the reactants. So, one can easily cross out the two products. Reduction...
by Sunday | Sep 14 | Chemistry JAMB
A. relative atomic number B. atomic mass C. relative isotopic mass D. nuclear charge Correct Answer: Option A – relative atomic number Explanation The periodic number table is arranged in order of atoms increasing atomic...
by Sunday | Sep 14 | Chemistry JAMB
A. CH3-COOH B. CH3—CH2—COOH C. H-COOH D. CH3 Correct Answer: Option B – CH3—CH2—COOH Explanation Bacteria of the genus Propionibacterium produce propionic acid (Propanoic Acid) as the end-product of their anaerobic metabolism. This class of bacteria is commonly...
by Sunday | Sep 14 | Chemistry JAMB
A. RCHO B. R2CO C. RCOOH D. RCOOR Correct Answer: Option B – R2CO Explanation Alkanones also is known as ketones have the general formula R2CO
by Sunday | Sep 14 | Chemistry JAMB
A. ΔH is positive and TΔ S is zero B. ΔH is positive and T Δ S is negative C. ΔH is negative and TΔ S is zero D. ΔH is zero and T Δ S is positive Correct Answer: Option D – ΔH is zero and T Δ S is positive Explanation The definition of enthalpy change is ΔH = ΔU...
by Sunday | Sep 14 | Chemistry JAMB
A. small sizes B. large sizes C. different sizes D. the same size Correct Answer: Option C – different sizes Explanation Sieving is a simple and convenient technique of separating particles of different sizes.
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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