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?
See more
2020 WAEC SSCE Chemistry Past Questions
Ulearngo is an independent study app. It is not affiliated with, endorsed by, or representing West African Examinations Council (WAEC). Always confirm official exam, admission, registration, syllabus, timetable, and result information from WAEC official website, WAEC Nigeria.
2020
How many moles of H\(_2\)SO4 are there in 50 cm\(^3\)of 0.108 mol dm\(^3\)solution of the acid?
See more
2020
Which of the following statements about the solubility of a salt is correct?
See more
2020
Which of the following hydroxides is not readily soluble in water?
See more
2020
Which of the following oxides has a giant covalent structure?
See more
2020
The bond between NH\(_3\)and H\(^+\) in NH4\(^+\)is?
See more
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]
See more
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\(_g\)
See more
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?
See more
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?
See more
2020
Which of the following standard conditions is not correct about energy changes?
See more
2020
Which of the following reactions are always exothermic? I. Neutralization II. Decomposition III. Combustion
See more
2020
Which of the following statements is correct for a reaction at equilibrium?
See more
2020
Which of the following substances is not a reducing agent?
See more
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\(_3\)
See more
2020
An alkanol containing 60% carbon by mass would have a molecular formula [H=1.0. C-12.0, O= 16.0]
See more
2020
Which of the following compounds has the lowest boiling point?
See more
2020
The type of isomerism exhibited by cis and trans isomers is?
See more
2020
The following molecules have double covalent bonds between two atoms except?
See more
2020
Which of the following solids would not decompose on heating?
See more