2006 JAMB UTME Chemistry Past Questions

2006

When 50cm2 of a saturated solution of sugar of molar mass 342 g at 40oC was evaporated to dryness, 34.2g of dry solid was obtained. The solubility of sugar at 40oC is

2006

The products of the combustion of candle wax are

2006

An emulsion may be produced by shaking a detergent solution with

2006

Nuclear fission involves the splitting of a heavy element into two nuclei of

2006

The volume of 2.5 moles of oxygen at s.t.p is[Molar volume of a gas at s.t.p = 22.4 dm3]

2006

A difference between chemical and physical change is that in a chemical change

2006

A particle that contains 11 protons, 12 neutrons and 10 electrons is probably a

2006

When a crystal was added to the clear solution of its salt, the crystal did not dissolve and the solution remained unchange. This showed that the solution was

2006

The idea of planetary electron was that of

2006

The order in which a mixture of sand, ammonium chloride and sodium chloride can be separated is

2006

A decrease in atomic size and an increase in nuclear charge across a period lead to

2006

The element with the electron configuration 1s22s22p3 is

2006

What is the molar mass of a substance, if 0.4 mole of the substance has a mass of 25.0g?

2006

H2(g) + Br2(g) → 2HBr(g)The above reaction is carried out at 25oC. ΔH is -72 kJ mol-1 and ΔS is - 106 J mol-1K-1, the reaction will

2006

The ion that can be used as an oxidizing agent is

2006

2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g)In the reaction above, the mass of carbon(IV)oxide produced on burning 78 g of ethyne is[C =12, O = 16, H = 1]

2006

If 30cm3 of gas at 50oC is warmed to 80o at a fixed pressure, the fractional increase in volume is

2006

Na2CO3(g) + 2HCl(aq) → 2NaCl(aq) + H2O(l) + CO2(g)How many moles of sodium trioxocarbonate (IV) are there in a 25 cm3 solution which required 10cm3 of 0.05 mol dm-3 hydrochloric acid solution to neutralize it?

2006

2006 JAMB UTME Chemistry Past Questions

When 50cm2 of a saturated solution of sugar of molar mass 342 g at 40oC was evaporated to dryness, 34.2g of dry solid was obtained. The solubility of sugar at 40oC is

The products of the combustion of candle wax are

An emulsion may be produced by shaking a detergent solution with

Nuclear fission involves the splitting of a heavy element into two nuclei of

The volume of 2.5 moles of oxygen at s.t.p is[Molar volume of a gas at s.t.p = 22.4 dm3]

A difference between chemical and physical change is that in a chemical change

A particle that contains 11 protons, 12 neutrons and 10 electrons is probably a

When a crystal was added to the clear solution of its salt, the crystal did not dissolve and the solution remained unchange. This showed that the solution was

The idea of planetary electron was that of

The order in which a mixture of sand, ammonium chloride and sodium chloride can be separated is

A decrease in atomic size and an increase in nuclear charge across a period lead to

The element with the electron configuration 1s22s22p3 is

What is the molar mass of a substance, if 0.4 mole of the substance has a mass of 25.0g?

H2(g) + Br2(g) → 2HBr(g)The above reaction is carried out at 25oC. ΔH is -72 kJ mol-1 and ΔS is - 106 J mol-1K-1, the reaction will

The ion that can be used as an oxidizing agent is

2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g)In the reaction above, the mass of carbon(IV)oxide produced on burning 78 g of ethyne is[C =12, O = 16, H = 1]

If 30cm3 of gas at 50oC is warmed to 80o at a fixed pressure, the fractional increase in volume is

Na2CO3(g) + 2HCl(aq) → 2NaCl(aq) + H2O(l) + CO2(g)How many moles of sodium trioxocarbonate (IV) are there in a 25 cm3 solution which required 10cm3 of 0.05 mol dm-3 hydrochloric acid solution to neutralize it?

In the electrolysis of CuSO4(g) using platinum electrodes, the reaction at the anode is

The solution that will conduct the highest amount of electricity is