2012
An increase in the pressure exerted on gas at a constant temperature results in
See more
2012 JAMB UTME Chemistry Past Questions
Ulearngo is an independent study app. It is not affiliated with, endorsed by, or representing Joint Admissions and Matriculation Board (JAMB). Always confirm official exam, admission, registration, syllabus, timetable, and result information from JAMB official website.
2012
50 cm3 of gas was collected over water at 10oC and 765 mm Hg. Calculate the volume of the gas at s.t.p. if the saturated vapour pressure of water at 10 oC is 5mm Hg
See more
2012
How many atoms are present in 6.0g of magnesium?[Mg = 24, NA = 6.02 x 1023 mol-1]
See more
2012
Which of the following methods can be used to obtain pure water from a mixture of sand, water and methanoic acid?
See more
2012
The electronic configuration of Mg 2+ is
See more
2012
If the elements X and Y have atomic numbers 11 and 17 respectively, what type of bond can they form?
See more
2012
L . Evaporation. ll. Sublimation. lll. Diffusion. IV. Brownian motion.Which of the above can correctly be listed as evidences for the particulate nature of matter?
See more
2012
2H2(g) + O2(g) → 2H2 O(g)In the reaction above, what volume of hydrogen would be left over when 300 cm3 of oxygen and 1000 cm3 of hydrogen are exploded in a sealed tube?
See more
2012
Chlorination of water for town supply is carried out to
See more
2012
The chemicals used to soften hard water involves the addition of
See more
2012
I. It has a varied composition from one place to another.II. It constituents can be separated by physical means.III. It contains unreactive noble gasesWhich of the above shows that air is a mixture?
See more
2012
Which of the following is used to study the arrangement of particles in crystal lattices?
See more
2012
Group VII elements are
See more
2012
The number of hydroxonium ions produced by one molecule of an acid in aqueous solution is its
See more
2012
Which of the following will produce a solution with pH less than 7 at equivalent point?
See more
2012
Which of the following pollutants is associated with brain damage?
See more
2012
Potassium trioxochlorate (V)has a solubility of 1.5 mol dm -3 at 45 oC.On cooling this solution to a temperature of 20 oC, the solubility was found to be 0.5 mol dm -3. What mass of KCIO 3 was crystalized out?[K = 39, Cl…
See more
2012
The solubilites of different solutes in a given solvent can be compared by
See more
2012
What number of moles of Cu 2+ will be deposited by 360 coulombs of electricity?[f = 96500 C mol -1]
See more
2012
2Na 2 O 2(s) + 2H 2 O 2(1) → 4 NaOH(s) +O2(s)The substance that is oxidized in the reaction above is
See more