1978 JAMB UTME Chemistry Past Questions

1978

In the reaction between sodium hydroxide and sulphuric acid solutions, what volume of 0.5 molar sodium hydroxide would exactly neutralise 10cm3 of 1.25 molar sulphuric acid?

1978

The periodic classification of elements is an arrangement of the elements in order of their

1978

When sodium chloride and metallic sodium are each dissolved in water

1978

Zinc Oxide is a

1978

When air which contains the gases Oxygen, nitrogen, carbondioxide, water vapour and the rare gases, is passed through alkaline pyrogallol and then over quicklime, the only gases left are;

1978

The oxidation state of chlorine in potassium chlorate is

1978

An element X forms the following compounds with chlorine; XCl4, XCl3, XCl2. This illustrates the

1978

A small quantity of solid ammonium chloride (NH4Cl) was heated gently in a test tube, the solid gradually disappears to produce two gases. Later, a white cloudy deposit was observed on the cooler part of the test tube. T…

1978

Which of the following metals cannot replace hydrogen from water or steam?

1978

When each of the nitrates of Potassium, Magnesium and iron is heated,

1978

The pH of four solutions W, X, Y, Z are 4, 6, 8, 10 respectively, therefore

1978

When large hydrocarbon molecules are heated at high temperature in the presence of a catalyst to give smaller molecules, the process is known as

1978

When heat is absorbed during a chemical reaction, the reaction is said to be

1978

If 30cm3 of oxygen diffuses through a porous pot in 7 seconds, how long will it take 60cm3 of chlorine to diffuse through the same pot, if the vapour densities of oxygen and chlorine are 16 and 36 respectively?

1978

The IUPAC names of the compounds CH3COOH and CH2=CH2 are respectively;

1978

The reaction between an organic acid and an alcohol in the presence of an acid catalyst is known as;

1978

During the electrolysis of copper II sulphate between platinum electrodes, if litmus solution is added to the anode compartment,

1978

A sample of hard water contains some calcium sulphate and calcium hydrogen carbonate. The total hardness may therefore be removed by

1978

When ammonia and hydrogen ion bond together to form ammonium ion, the bond formed is called

1978

Which of the following is not a member of the homologous series of the paraffins (alkanes)?

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