by Sunday | Dec 10 | Chemistry WAEC
A. number of carbon atoms present in the compound B. molecular mass of the compound C. molecular formula of the compound D. number of alkyl groups bonded to the carbon having the hydroxyl group Correct Answer: Option D D. number of alkyl groups bonded to the carbon...
by Sunday | Dec 10 | Chemistry WAEC
A. The chemical property change gradually throughout the series B. physical properties of members are similar C. They have the same molecular formula D. Successive members undergo changes in molecular formula by CH2 Correct Answer: Option D D. Successive members...
by Sunday | Dec 10 | Chemistry WAEC
2NO(g)+O2(g)→2NO2(g) A. +2 to 0 B. +2 to -2 C. +2 to +4 D. +4 to +2 Correct Answer: Option C Explanation In NO, the oxidation number for nitrogen is N – 2 = 0 ⇒ N = +2 In NO2, we have N – (2×2) =0 N – 4 =0 N...
by Sunday | Dec 10 | Chemistry WAEC
A. electrons are consumed B. ions are reduced C. oxidation is involved D. the electrode dissolves Correct Answer: Option C C. oxidation is involved Explanation In both the electrochemical cell and the electrolytic cell, at the anode, oxidation is...
by Sunday | Dec 10 | Chemistry WAEC
A. less than the activation energy B. greater than the activation energy C. greater than the energy of the product D. less than the energy of effective collision Correct Answer: Option B B. greater than the activation energy Explanation The energy of the reactants...
by Sunday | Dec 10 | Chemistry WAEC
A. neutralization B. reaction of an acid with trioxocarbonate(IV) salt C. double decomposition D. reaction of an acid with electropositive metals Correct Answer: Option C C. double decomposition
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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