2005 JAMB UTME Chemistry Past Questions

2005

Which of the following equimolar solutions will have the highest pH?

2005

2H2 + O22 → H2+O ΔH = -571kJIn the equation above, how much heat will be liberated if 12.0g of hydrogen is burnt in excess oxygen?

2005

In which of the following reactions can the oxidation number of the nitrogen be said to have increased?

2005

When iron is exposed to moisture and it rusts, the value of ΔG for the reaction is

2005

Phenolphthalein in acidic solution is

2005

The decolourization of purple colour of tetraoxomanganate (VII) ion is a test for

2005

The enzymes responsible for converting sucrose into two simple isomeric sugars is

2005

What will happen if an aluminium spoon is used to stir a solution of iron (II) trioxonitrates (V)?

2005

What is the correct IUPAC name for NO2-?

2005

When sulphur (IV) oxide is passed into a solution of sodium hydroxide for a long time, it eventually produces a solution of

2005

A substance that is used as a ripening agent for fruits is

2005

Equal moles of ethyne and hydrogen iodide react to give

2005

How many hydrogen atoms does a single ring cycloalkane have less than the corresponding open-chain alkane?

2005

In the purification of impure samples of ethyl ethanoate synthesized by esterification, concentrated sodium trioxocarbonate (IV) solution is used to remove

2005

Which of the following are structural isomers?

2005

Kerosine is commonly used to remove the red colour stain of palm oil from cloths because it

2005

The air around smelting industries is likely to contain

2005

The solubility curve shows the variation of solute concentration with

2005

25cm3 of a mixture of nobel gases was obtained from air after the removal of other constituents. What was the original volume of air

2005

When water boilers are used for long period of time, the solid substances left behind as scale are

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