1984 JAMB UTME Chemistry Past Questions

1984

For the reaction NH4NO2 \(\to\) N2 + 2H2O, calculate the volume of nitrogen that would be produced at S. T. P from 320 g of the dioxonitrate(iii)salt. (Relative atomic masses: N = 14, O = 16, H = 1)

1984

20 cm 3 of hydrogen gas are sparked with 20cm 3 of oxygen gas in an endimoeter at 373k (100 oC) and 1 atmosphere. The resulting mixture is cooled to 298 K (25 oC) and passed over calcium chloride. The volume of the resid…

1984

Sodium chloride may be obtained from brine by

1984

The balanced equation for the reaction of tetraoxosulphate(VI)acid with aluminium hydroxide to give water and aluminium tetraoxosulphate(VI) is

1984

The ratio of the number of molecules in 2g of hydrogen to that in 16g of oxygen is

1984

Naphthalene when heated melts at 354 K (81 oC). At this temperature the molecules of naphthalene

1984

Which among the elements 1. Carbon 2. Oxygen 3. Copper 4. Bromine 5. Zinc, will NOT react with either water or steam?

1984

A molar solution of caustic soda is prepared by dissolving

1984

Which of the following methods may be used to prepare trioxonitrate (V) acid (nitric acid) in the laboratory?

1984

In dilute solution the heat of the reaction NaOH + HCl = NaCl + H2O is - 57.3kJ. Therefore the heat of the reaction 2NaOH + H2SO4 \(\to\) Na2SO4 + 2H2O is

1984

For the reaction 2Fe3+ 2I- \(\to\) 2Fe2+ + I2, which of the following statements is TRUE?

1984

In which of the following reactions does hydrogen peroxide act as a reducing agent?

1984

Which of the following mixtures would result in a solution of pH greater than 7?

1984

From the reactions : ZnO + Na2O \(\to\) NaZnO and ZnO + CO2 \(\to\) ZnCO3 it may be concluded that zinc oxide is

1984

Which of the following statements is NOT true of carbon monoxide?

1984

Sulphur

1984

An element that can exist in two or more different structural forms which possess the same chemical properties is said to exhibit.

1984

Lime - water, which is used in the laboratory for the detection of carbon(iv)oxide is an aqueous solution of

1984

An organic compound with a vapour density 56.5 has the following percentage composition:C =53.1% N = 12.4%, O = 28.3%, H = 6.2%. The molecular formula of the compound is Relative atomic masses: N = 14, O = 16, C = 12, H…

1984 JAMB UTME Chemistry Past Questions

For the reaction NH4NO2 \(\to\) N2 + 2H2O, calculate the volume of nitrogen that would be produced at S. T. P from 320 g of the dioxonitrate(iii)salt. (Relative atomic masses: N = 14, O = 16, H = 1)

20 cm 3 of hydrogen gas are sparked with 20cm 3 of oxygen gas in an endimoeter at 373k (100 oC) and 1 atmosphere. The resulting mixture is cooled to 298 K (25 oC) and passed over calcium chloride. The volume of the resid…

Sodium chloride may be obtained from brine by

The balanced equation for the reaction of tetraoxosulphate(VI)acid with aluminium hydroxide to give water and aluminium tetraoxosulphate(VI) is

The ratio of the number of molecules in 2g of hydrogen to that in 16g of oxygen is

Naphthalene when heated melts at 354 K (81 oC). At this temperature the molecules of naphthalene

Which among the elements 1. Carbon 2. Oxygen 3. Copper 4. Bromine 5. Zinc, will NOT react with either water or steam?

A molar solution of caustic soda is prepared by dissolving

Which of the following methods may be used to prepare trioxonitrate (V) acid (nitric acid) in the laboratory?

In dilute solution the heat of the reaction NaOH + HCl = NaCl + H2O is - 57.3kJ. Therefore the heat of the reaction 2NaOH + H2SO4 \(\to\) Na2SO4 + 2H2O is

For the reaction 2Fe3+ 2I- \(\to\) 2Fe2+ + I2, which of the following statements is TRUE?

In which of the following reactions does hydrogen peroxide act as a reducing agent?

Which of the following mixtures would result in a solution of pH greater than 7?

From the reactions : ZnO + Na2O \(\to\) NaZnO and ZnO + CO2 \(\to\) ZnCO3 it may be concluded that zinc oxide is

Which of the following statements is NOT true of carbon monoxide?

Sulphur

An element that can exist in two or more different structural forms which possess the same chemical properties is said to exhibit.

Lime - water, which is used in the laboratory for the detection of carbon(iv)oxide is an aqueous solution of

An organic compound with a vapour density 56.5 has the following percentage composition:C =53.1% N = 12.4%, O = 28.3%, H = 6.2%. The molecular formula of the compound is Relative atomic masses: N = 14, O = 16, C = 12, H…

The hybridization of the carbon atom in ethyne is