![A quantity of electricity liberates 3.6g of Silver from its salt. What mass of aluminium will be liberated from its salt by the same quantity of electricity? [Al = 27, Ag = 108].](https://erudites.ng/wp-content/uploads/2020/06/past-questions-and-answers.jpg)
Methanoic acid mixes with water in all proportions and has about the same boiling point as water. Which of the following methods would you adopt to obtain pure water from a mixture of Sand, water and methanoic acid?
A. Fractional distillation B. Filtration followed by distillation C. Neutralization with sodium hydroxide followed by distillation D. Neutralization with sodium hydroxide followed by filtration Correct Answer: Option B – Filtration followed by distillation...
Which of the following pairs of substances will react further with oxygen to form a higher oxide?
A. CO2 and H2O B. NO and H2O C. CO and CO2 D. SO2 and NO Correct Answer: Option D – SO2 and NO
The boiling of fat and aqueous caustic soda is referred to as?
A. hydrolysis B. esterification C. acidification D. saponification Correct Answer: Option D – saponification
What the effect of the experiment on the litmus paper at initial level?
A. be bleached B. turn green C. turn red D. turn blue Correct Answer: Option D
If 1 litre of 2.2M sulphuric acid is poured into a bucket containing 10 litres of water and the resulting solution mixed thoroughly, the resulting sulphuric acid concentration will be?
A. 2.2M B. 1.1M C. 0.22M D. 0.11M Correct Answer: Option C = 0.22MProducts
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