by Sunday | Sep 13 | Chemistry JAMB
A. electrolyte B. electrodes C. salt bridge D. solid-liquid interface Correct Answer: Option C – salt bridge
by Sunday | Sep 13 | Chemistry JAMB
Consider the reaction: A + 2B(g) ⇌ 2C + D(g) (Δ H = +ve) A. Rate of backward reaction will increase B. The equilibrium constant will shift C. Rates of forward and backward reactions are not affected D. Rate of forward reaction will increase Correct Answer: Option A...
by Sunday | Sep 13 | Chemistry JAMB
A. Na+ B. Mg²+ C. Si²+ D. O²+ Correct Answer: Option C – Si²+ Explanation Two or more ions are said to be isoelectronic if they have the same electronic structure and the same number of valence electrons. Na+ = 10 electrons = 2, 8 Mg²+ = 10 electrons = 2,8 O²− =...
by Sunday | Sep 13 | Chemistry JAMB
A. Ca²+ and Mg²+ B. K+ and Mg²+ C. Ca²+ and Li+ D. Ca²+ and Na+ Correct Answer: Option A – Ca²+ and Mg²+
by Sunday | Aug 25 | Chemistry WAEC
The reaction represented by the equation C(s) + H2O(l) → CO(s) + H2(s) was carried out at 27°C if the enthalpy change was + 4500 J and the entropy change was + 12J, what was the free energy change? (∆G = ∆H – T∆S) A. – 4176 J B. +4176 J C. – 900 J D....
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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