2020
If 20 cm\(^3\)of sodium hydroxide was neutralized by 20 cm\(^3\) of 0.01 mol dm3 tetraoxosulphate(VI) acid, what is the concentration of the solution?
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2020 WAEC SSCE Chemistry Past Questions
2020
How many moles of H\(_2\)SO4 are there in 50 cm\(^3\)of 0.108 mol dm\(^3\)solution of the acid?
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2020
Which of the following statements about the solubility of a salt is correct?
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2020
Which of the following hydroxides is not readily soluble in water?
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2020
Which of the following oxides has a giant covalent structure?
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2020
The bond between NH\(_3\)and H\(^+\) in NH4\(^+\)is?
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2020
When 250 cm3 of a saturated solution of CuSO\(_4\) at 30°C was evaporated to dryness, 5.0 g of the salt was obtained..What is the solubility of the salt at 30°C? [CuSO\(_4\) = 160]
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2020
What volume of oxygen at s.t.p is required to burn completely 7.5 dm\(^3\)of methane according to the following equation?CH\(_4\)\(_g\) + 20\(_2\)\(_g\)CO\(_2\)\(_g\) +H\(_2\)O\(_g\)
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2020
The initial volume and pressure of a given mass of gas is V and 3.P. What is its pressure if its volume is increased to 2V at constant temperature?
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2020
If 5.0 cm\(^-3\)of 0.200 mol dm\(^-3\)Na\(_2\)CO\(_3\)was diluted to 250cm\(^-3\)solution, what would be the concentration of the resulting solution?
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2020
Which of the following standard conditions is not correct about energy changes?
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2020
Which of the following reactions are always exothermic? 1. Neutralization Il. Decomposition III. Combustion
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2020
Which of the following statements is correet for a reaction at equilibrium?
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2020
Which of the following substances is not a reducing agent?
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2020
Which of the following compounds would release hydrogen when reacted with sodium metal?I.CH\(_3\)COOHII.CH\(_3\)CH\(_2\)OHIII.CH\(_3\)COOCH\(_3\)
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2020
An alkanol containing 60% carbon by mass would have a molecular formula [H=1.0. C-12.0, O= 16.0]
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2020
Which of the following compounds has the lowest boiling point?
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2020
The type of isomerism exhibited by cis and trans isomers is?
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2020
The following molecules have double covalent bonds between two atoms except?
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2020
Which of the following solids would not decompose on heating?
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