by Sunday | Mar 17 | Chemistry WAEC
A. strong acid and strong base B. weak acid and weak base C. strong acid and weak base D. weak acid and strong base Correct Answer: Option A – strong acid and strong base Explanation In other terms, the stronger the acid the greater the amount of hydrogen ions...
by Sunday | Mar 17 | Chemistry WAEC
A. bromocresol B. methyl orange C. methyl red D. phenolphthalein Correct Answer: Option D – phenolphthalein Explanation Phenolphthalein is suitable as indicator for this reaction i.e strong base and weak acid
by Sunday | Mar 17 | Chemistry WAEC
A. ethanoic acid B. hydrochloric acid C. sodium chloride D. sodium hydrogentrioxocarbonate(iv) Correct Answer: Option B – hydrochloric acid Explanation Low PH means strongly acidic cause acidity increases with decreasing PH values. Example is Hydrochloric...
by Sunday | Mar 17 | Chemistry WAEC
A. carbon(iv)oxide B. carbon(ii)oxide C. nitrogen D. oxygen Correct Answer: Option A – carbon(iv)oxide Explanation An acid gas is any gaseous compound which, when dissolved in water, will form an acidic solution The most common acid gases are hydrogen sulfide...
by Sunday | Mar 17 | Chemistry WAEC
A. Hydrochloric acid B. ethanedioc acid C. ethanoic acid D. hydrofluoric acid Correct Answer: Option C – ethanoic acid Explanation Vinegar is an aqueous solution of acetic acid and trace compounds that may include...
by Sunday | Mar 17 | Chemistry WAEC
A. 0.05 B. 0.10 C. 2.60 D. 2.80 Correct Answer: Option A – 0.05 Explanation (mass / molar mass) X (1000 / vol ) (0.28 / 56.0) X (1000 / 100 ) = 2.8 / 56 = 0.05 mol\dm³
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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