CHEMISTRY POST UTME

Practice the Chemistry Post UTME for Universities, Polytechnics
and College of Education with our CBT software and pass your chemistry examination.

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Category: CHEMISTRY POST UTME

The movement of liquid molecules from the surface of the liquid to the gaseous phase above it is known as

Brownian motion

Zig Zag Motion

liquefaction

evaporation

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Category: CHEMISTRY POST UTME

Esterification of propane 1, 2, 3-triol and unsaturated higher carboxylic acids will produce

fats

alkanols

methyl propanoate

soap

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Category: CHEMISTRY POST UTME

The oxidation number of chlorine is +1in

NaClO

ZnCl2

KClO3

Cl2O7

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A gaseous mixture of 80.0g of oxygen and 56.0g of nitrogen has a total pressure of 1.8atm. The partial pressure of oxygen in the mixture is

1.0atm

1.2atm

0.8atm

1.4atm

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Category: CHEMISTRY POST UTME

The greenhouse effect is a climatic condition associated with the presence of excess

NH3

NO

H2S

CO2

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The following are uses of sulphur except

coating of steel to prevent rusting

manufacture of tetraoxosulphate (VI) acid

vulcanization of rubber

manufacture of dyes

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Category: CHEMISTRY POST UTME

Organic Chemistry is the branch of Chemistry that deals with ------- and ------

Carbon & Carbon

Carbon & Sulphur

Carbon & Hydrogen

Hydrogen & oxygen

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Category: CHEMISTRY POST UTME

Copper metal dissolves in concentrated trioxonitrate (v) acid with the resultant evolution of

CO2

SO2

NO2

CO

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Category: CHEMISTRY POST UTME

3.0g of a mixture of potassium carbonate and potassium chloride were dissolved in a 250cm3 standard flask.25cm3 of this solution required 40.00cm3 of 0.01M HCl for neutralization. What is the percentage by weight of k2CO3 in the mixture? (k = 39, O = 16, C = 12)

92

72

82

89

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Category: CHEMISTRY POST UTME

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

acetic acid and ethene

acetic acid and ethane

ethanoic acid and ethene

methanoic acid and ethylene

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Category: CHEMISTRY POST UTME

The percentage of water of crystallization in ZnSO4. 7H2O is

33%

55%

44%

87%

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Category: CHEMISTRY POST UTME

The molecular formula of a common organic laboratory anesthetic is

CCl4

CHI3

CHCl3

CHF3

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Category: CHEMISTRY POST UTME

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?

25moles

0.625moles

6.25moles

12.5moles

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Category: CHEMISTRY POST UTME

Organic molecules that have the suffix-ene are unsaturated hydrocarbons that have

a single bond

an ionic bond

a triple bond

double bond

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Category: CHEMISTRY POST UTME

In the Periodic Table, the elements that lose electrons most readily belong to

group VIIA

group IIIA

group IA

group IIA

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Category: CHEMISTRY POST UTME

Which of the following gases can be collected by the method of downward delivery?

ammonia

oxygen

hydrogen

chlorine

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Category: CHEMISTRY POST UTME

0.499g of CuSO4.XH2O when heated to constant weight gave a residue of 0.346g. What is the value of X?

5.0

4.0

2.0

3.0

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The metal extracted from cassiterite is

copper

sodium

tin

calcium

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The principal constituents of natural gas is

butane

ethane

propane

methane

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Calcium atom ionizes by

sharing two electrons

gaining two proton

gaining two electrons

losing two electrons

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Category: CHEMISTRY POST UTME

A mixture of sugar and sulphur can be separated by

evaporation, dissolution in water and filtration

dissolution in water, evaporation and filtration

dissolution in water, filtration and evaporation

filtration, evaporation and dissolution in water

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Which of the following is an acidic salt?

CH3CO2Na

Na2S

Na2SO4

NaHSO4

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Which of the following types of reactions takes place between C2H4 and the halogens?

polymerization

Addition

Substitution

Oxidation

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Category: CHEMISTRY POST UTME

What weight of sodium hydroxide is required to make 500cm3 of 0.2M solution?

10g

40g

20g

4g

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Category: CHEMISTRY POST UTME

Alkanals can be differentiated from alkanones by reaction with

sodium hydrogen sulphite

Tollen’s reagent

hydrogen cyanide

2, 4 – dinitrophenylhydrazine

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Category: CHEMISTRY POST UTME

An element X forms the following compounds with chlorine: XCl4, XCl3, XCl2. This illustrate the

CHEMISTRY POST UTME

CHEMISTRY POST UTME

CHEMISTRY POST UTME

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