1993 JAMB UTME Chemistry Past Questions

1993

NaCI(s) + H2SO4(I) → HCI(g) + NaHSO4(s).In the reaction above, H2SO4 behaves as?

1993

10g of a solid is in equilibrium with its own vapour.When 1 g of a small amount of solid is added, the vapour pressure?

1993

The standard enthalpies of formation of CO2(g), H2O(g) and CO(g) in kJ mol- are -394, -242 and -110 respectively. What is the standard enthalpy change for the reaction CO(g) + H2(g)O → CO2(g) + H2(g)?

1993

A reaction takes places spontaneously if?

1993

Bronze is an alloy of?

1993

When dilute aqueous solutions of lead (II) nitrate and potassium bromide are mixed, a precipitate is observed.The products of this reaction are?

1993

Which of the following is a property of ionic chlorides?

1993

An experiment produces a gaseous mixtures of carbon (IV) oxide and carbon (II) oxide. In order to obtain pure carbon (II) oxide, the gas mixture should be?

1993

Which of these salts will produce its metal, oxygen and nitrogen (IV) oxide on heating?

1993

The carbon atoms on ethane are?

1993

Al2O3(s) + 3H2SO4(aq) → Al2(SO4(aq)) + 3H2(I)OAl2O3(s) + 2NaOH(aq)) + 3H2(I)O → 2NaAl(OH)4(aq)).We can conclude from the equations above that Al2O3(s) is?

1993

It is not desirable to use lead tetraethyl as an anti-knock agent because?

1993

The fraction of crude oil used as jet fuel is?

1993

The active reducing agent in the blast furnace for the extraction of iron is?

1993

The confirmatory test for alkanoic acids in organic qualitative analysis is the?

1993

Which of the following represents saponification?

1993

Catalytic hydrogenation of benzene produces?

1993

Palm wine turns sour with time because?

1993

1993 JAMB UTME Chemistry Past Questions

NaCI(s) + H2SO4(I) → HCI(g) + NaHSO4(s).In the reaction above, H2SO4 behaves as?

10g of a solid is in equilibrium with its own vapour.When 1 g of a small amount of solid is added, the vapour pressure?

The standard enthalpies of formation of CO2(g), H2O(g) and CO(g) in kJ mol- are -394, -242 and -110 respectively. What is the standard enthalpy change for the reaction CO(g) + H2(g)O → CO2(g) + H2(g)?

A reaction takes places spontaneously if?

Bronze is an alloy of?

When dilute aqueous solutions of lead (II) nitrate and potassium bromide are mixed, a precipitate is observed.The products of this reaction are?

Which of the following is a property of ionic chlorides?

An experiment produces a gaseous mixtures of carbon (IV) oxide and carbon (II) oxide. In order to obtain pure carbon (II) oxide, the gas mixture should be?

Which of these salts will produce its metal, oxygen and nitrogen (IV) oxide on heating?

The carbon atoms on ethane are?

Al2O3(s) + 3H2SO4(aq) → Al2(SO4(aq)) + 3H2(I)OAl2O3(s) + 2NaOH(aq)) + 3H2(I)O → 2NaAl(OH)4(aq)).We can conclude from the equations above that Al2O3(s) is?

It is not desirable to use lead tetraethyl as an anti-knock agent because?

The fraction of crude oil used as jet fuel is?

The active reducing agent in the blast furnace for the extraction of iron is?

The confirmatory test for alkanoic acids in organic qualitative analysis is the?

Which of the following represents saponification?

Catalytic hydrogenation of benzene produces?

Palm wine turns sour with time because?

A gas that will turn orange potassium heptaoxodichromate (lV) solution to clear green is?

The two functional groups in the above compound are