FUTO Chemistry 2018/2019 - Model 1 Past Questions

Practice each question, then open it to see the full details.

To obtain pure carbon(II) oxide from its mixture with carbon(IV) oxide, the mixture should be

A.passed over heated copper (II) oxide
B.bubbled through water
C.bubbled through concentrated tetraoxosulphate (VI) acid
D.bubbled through sodium hydroxide

The solution that will conduct the highest amount of electricity is

A.2.0mol dm-³ of ethanoic acid
B.0.5 mol dm-³ ethanoic acid
C.2.0mol dm-³ of hydrochloric acid
D.0.5mol dm-³ of hydrochloric acid

The volume of 2.5 moles of oxygen at s.t.p. is

A.56.0dm³
B.84.0dm³
C.50.0 dm³
D.28.0dm³ [Molar volume of a gas at s.t.p. = 22.4dm³

Which of the following result in the fall of acid rain?

A.Gaseous hydrocarbons
B.Oxides of lead
C.Particulate matter
D.Oxides of sulphur

Which of the following substance is trihydric?

A.Ethanol
B.Glycol
C.Glycerol
D.Phenol

The efficiency of a solid catalyst to increase reaction rates depends on its

A.concentration
B.solubility
C.quantity
D.surface area

Sugar is separated from its impurities by

A.precipitation
B.crystallization
C.distillation
D.evaporation

The pressure of 100cm³ of oxygen at 35°C is 750mmHg. What will be the volume of the gas if the pressure is reduced to 100mmHg without changing the temperature?

A.650cm³
B.850 cm³
C.580cm³
D.750cm³

The energy change which accompanies the addition of an electron to a gaseous atom is

A.atomization
B.electron affinity
C.electronegativity
D.ionization

Which of the following molecules has a triple bond in its structure?

A.CH₄
B.NH₃
C.N₂
D.O₂