by Sunday | Dec 9 | Chemistry WAEC
A. CH B. CH2 C. P2O5 D. N2O4 Correct Answer: Option D Explanation The empirical formula is always in the ratio of the smallest positive integer, hence, N2O4 has an empirical formula NO2.
by Sunday | Dec 9 | Chemistry WAEC
A. reactivity and oxidation respectively B. conductivity and corrosiveness respectively C. melting point and reduction respectively D. electronegativity and solubility respectively Correct Answer: Option A A. reactivity and oxidation respectively Explanation Copper is...
by Sunday | Dec 9 | Chemistry WAEC
A. Unlike gases, vapours are liquids at room temperature B. Unlike gases, vapour can easily be condensed into liquids C. Unlike gases, vapour is readily converted into solids D. Vapours are generally denser than gases Correct answer: B. Unlike gases, vapour can easily...
by Sunday | Dec 9 | Chemistry WAEC
A. The water is at lower temperature than the ice B. Energy is absorbed when the ice changes to water C. Energy is released when the ice changes to water D. The water molecules vibrate about a fixed point Correct Answer: Option B Explanation Heat energy near the ice...
by Sunday | Dec 9 | Chemistry WAEC
A. particle size of the reactants B. vigorous stirring of the reaction mixture C. presence of a catalyst D. change in concentration of the reactants Correct Answer: Option D D. change in concentration of the reactants Explanation The position of equilibrium will shift...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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