1985 JAMB UTME Chemistry Past Questions

1985

The atomic number of an element whose cation, X2+, has the ground state electronic configuration 1s22s22p63s22p6 is?

1985

Which of the following compounds is NOT the correct product formed when the parent metals is heated in air?

1985

A colourless organic compound X was burnt in excess air to give two colourless and odourless gases, Y and Z, as products. X does not decolorize blue bromine vapour, Y turns lime milky while Z gives a blue colour with cop…

1985

The function of sulphur during vulcanization rubber is to?

1985

Which of the following roles does sodium chloride play in soap preparation? It

1985

An aqueous solution of an inorganic salt gave white precipitate (i) soluble in excess aqueous NaOH (ii) insoluble in excess aqueous NH3 (iii) with dilute HCl. The cation present in the inorganic salt is?

1985

The process involved in the conversion of an oil into margarine is known as?

1985

The diagram shown above represents the solubility curves of two salts, X and Y, in water, use this diagram to answer the question. If 80 g each of X and Y are taken up in 100 g of water at 353 K we shall have

1985

The diagram shown above represents the solubility curves of two salts, X and Y, in water, use this diagram to answer the question. At room temperature (300 K)

1985

Figure 1 above shows part of the periodic Table which of the elements belongs to the p-block?

1985

Use the following option above to answer this question. Which of the following is the functional group of carboxylic acids?

1985

The I.U.P.A.C name for the compound

1985

The oxidation of

1985

Use the above options to the question. The products formed on hydrolysis of

1985

The diagram shown above represents the solubility curves of two salts, X and Y, in water, use this diagram to answer the question. If the molar mass of X is 36 g, the number of moles of X dissolved at 343 K is

1985

An organic compound contains 72% carbon, 12% hydrogen and 16% oxygen by mass. The empirical formula of the compound is

1985

Which of the following conduct electricity?

1985

3.0g of a mixture of potassium carbonate and potassium chloride were dissolved in a 25cm3 of this solution required required 40.00cm3 of 0.1M HCl for neutralization. What is the percentage by weight of K2CO3 in the mixtu…

1985

1985 JAMB UTME Chemistry Past Questions

The atomic number of an element whose cation, X2+, has the ground state electronic configuration 1s22s22p63s22p6 is?

Which of the following compounds is NOT the correct product formed when the parent metals is heated in air?

A colourless organic compound X was burnt in excess air to give two colourless and odourless gases, Y and Z, as products. X does not decolorize blue bromine vapour, Y turns lime milky while Z gives a blue colour with cop…

The function of sulphur during vulcanization rubber is to?

Which of the following roles does sodium chloride play in soap preparation? It

An aqueous solution of an inorganic salt gave white precipitate (i) soluble in excess aqueous NaOH (ii) insoluble in excess aqueous NH3 (iii) with dilute HCl. The cation present in the inorganic salt is?

The process involved in the conversion of an oil into margarine is known as?

The diagram shown above represents the solubility curves of two salts, X and Y, in water, use this diagram to answer the question. If 80 g each of X and Y are taken up in 100 g of water at 353 K we shall have

The diagram shown above represents the solubility curves of two salts, X and Y, in water, use this diagram to answer the question. At room temperature (300 K)

Figure 1 above shows part of the periodic Table which of the elements belongs to the p-block?

Use the following option above to answer this question. Which of the following is the functional group of carboxylic acids?

The I.U.P.A.C name for the compound

The oxidation of

Use the above options to the question. The products formed on hydrolysis of

The diagram shown above represents the solubility curves of two salts, X and Y, in water, use this diagram to answer the question. If the molar mass of X is 36 g, the number of moles of X dissolved at 343 K is

An organic compound contains 72% carbon, 12% hydrogen and 16% oxygen by mass. The empirical formula of the compound is

Which of the following conduct electricity?

3.0g of a mixture of potassium carbonate and potassium chloride were dissolved in a 25cm3 of this solution required required 40.00cm3 of 0.1M HCl for neutralization. What is the percentage by weight of K2CO3 in the mixtu…

Given that the molecular mass of iron is 56 and that of oxygen is 16, how many moles of iron(iii)oxide will be contained in 1kg of the compound?

Hydrogen diffuses through a porous plug