1990 JAMB UTME Chemistry Past Questions

1990

What is the concentration of H+ ions in moles per dm3 of a sodium of pH 4.398?

1990

2.0g of a monobasic acid was made up to 250 cm3 with distilled water. 25.00 cm3 of this solution required 20.00cm3 of 0.1 M NaOH solution for complete neutralization. The molar mass of the acid is?

1990

Use the graph above to answer this question. The structure of cis-2-butene is

1990

Changes in the physical in the scheme above.The letter X,Y and Z respectively represent

1990

Select the right answer from the structure above.Which of the following compounds represents the polymerization product of ethyne?

1990

The above reaction is an example of

1990

Use the above graph above to answer this question . CH3-C = CH \(\frac{Na}{liq NH_3}\)> P, Compound P, in the above reaction, is

1990

What is the IUPAC name for the hydrocarbon?

1990

The Avogadro number of 24g of magnesium is the same as that of

1990

Chlorine, consisting of two isotopes of mass numbers 35 and 37, has an atomic mass of 35.5. The relative abundance of the isotope of mass number 37 is?

1990

A metallic oxide which reacts with both HCl and NaOH to give salt and water only can be classified as __________.

1990

Cr2O7 + 6Fe2+ + 14H+ → 2Cr3+ + 6Fe3+ + 7H2O. In the above, the oxidation number of chromium changed from?

1 2 3

1990 JAMB UTME Chemistry Past Questions

What is the concentration of H+ ions in moles per dm3 of a sodium of pH 4.398?

2.0g of a monobasic acid was made up to 250 cm3 with distilled water. 25.00 cm3 of this solution required 20.00cm3 of 0.1 M NaOH solution for complete neutralization. The molar mass of the acid is?

Use the graph above to answer this question. The structure of cis-2-butene is

Changes in the physical in the scheme above.The letter X,Y and Z respectively represent

Select the right answer from the structure above.Which of the following compounds represents the polymerization product of ethyne?

The above reaction is an example of

Use the above graph above to answer this question . CH3-C = CH \(\frac{Na}{liq NH_3}\)&gt; P, Compound P, in the above reaction, is

What is the IUPAC name for the hydrocarbon?

The Avogadro number of 24g of magnesium is the same as that of

Chlorine, consisting of two isotopes of mass numbers 35 and 37, has an atomic mass of 35.5. The relative abundance of the isotope of mass number 37 is?

A metallic oxide which reacts with both HCl and NaOH to give salt and water only can be classified as __________.

Cr2O7 + 6Fe2+ + 14H+ → 2Cr3+ + 6Fe3+ + 7H2O. In the above, the oxidation number of chromium changed from?

Use the above graph above to answer this question . CH3-C = CH \(\frac{Na}{liq NH_3}\)> P, Compound P, in the above reaction, is