CHEMISTRY POST UTME

Name: CHEMISTRY POST UTME - 2022 | School Portal NG
Item: School Portal NG
Rating: 5
Author: School Portal NG

CHEMISTRY POST UTME

CHEMISTRY POST UTME

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

1 / 50

Category: CHEMISTRY POST UTME

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

NO

H2S

CO2

NH3

2 / 50

Category: CHEMISTRY POST UTME

Which of the following substances increases in mass when heated in air?

copper (ii)oxide

iodine crystals

sodium chloride

magnessium ribon

3 / 50

Category: CHEMISTRY POST UTME

Catalytic hydrogenation of benzene produces

margarine

benzene

an aromatic hydrogenation

cyclohexane

4 / 50

Category: CHEMISTRY POST UTME

Which of the following is needed to produce a slag during the extraction of iron in the blast furnace?

cryolite

carbon

sulphur

limestone

5 / 50

Category: CHEMISTRY POST UTME

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

33%

87%

55%

44%

6 / 50

Category: CHEMISTRY POST UTME

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

NO2

CO2

SO2

CO

7 / 50

Category: CHEMISTRY POST UTME

The following are uses of sulphur except

coating of steel to prevent rusting

vulcanization of rubber

manufacture of dyes

manufacture of tetraoxosulphate (VI) acid

8 / 50

Category: CHEMISTRY POST UTME

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

a triple bond

a single bond

double bond

an ionic bond

9 / 50

Category: CHEMISTRY POST UTME

Which of the following halogens is the most reactive?

Br2

I2

F2

Cl2

10 / 50

Category: CHEMISTRY POST UTME

The major source of oxides of nitrogen is from the burning of

coal

chlorofluorocarbons

wood

fuel

11 / 50

Category: CHEMISTRY POST UTME

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

methyl propanoate

fats

alkanols

soap

12 / 50

Category: CHEMISTRY POST UTME

An amphoteric oxide is an

amorphorous oxide of a metal

Oxide that is insoluble in water

Oxide that behaves as a base as well as an acid

amorphorous oxide of a non-metal

13 / 50

Category: CHEMISTRY POST UTME

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

group IA

group IIIA

group VIIA

group IIA

14 / 50

Category: CHEMISTRY POST UTME

Pauli exclusion principle is related to

electronegativity values of elements

quantum numbers of electrons

reversibility of equilibrium reactions

collision theory of reactions rate

15 / 50

Category: CHEMISTRY POST UTME

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

law of multiple proportions

law of conservation of mass

law of definite proportions

law of chemical proportions

16 / 50

Category: CHEMISTRY POST UTME

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

0.8atm

1.2atm

1.4atm

1.0atm

17 / 50

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?

0.625moles

25moles

12.5moles

6.25moles

18 / 50

Category: CHEMISTRY POST UTME

Calcium atom ionizes by

gaining two proton

sharing two electrons

gaining two electrons

losing two electrons

19 / 50

Category: CHEMISTRY POST UTME

Equilibrium is sad to be attained in a reversible reaction when

there is no further change in temperature

the rate of forward and backward reactions are equal

all the products have been formed

all the reactants have been used up

20 / 50

Category: CHEMISTRY POST UTME

Element P, Q, R and S have 6, 11, 15 and 16 electrons respectively, therefore,

P will form an ionic bond with R

Q will form a covalent bond with S

Q will form an electrovalent bond with S

R will form an electrovalent bond with S

21 / 50

Category: CHEMISTRY POST UTME

A current of 4.0 amperes was passed through copper (II) tetraoxosulphate (IV) solution for one hour using copper electrodes. What was the mass of copper deposited? (Cu =64, IF = 96500C)

4.8g

6.4g

3.2g

96

22 / 50

Category: CHEMISTRY POST UTME

Which of the following is an acidic salt?

CH3CO2Na

Na2SO4

NaHSO4

Na2S

23 / 50

Category: CHEMISTRY POST UTME

The molecular formula of a common organic laboratory anesthetic is

CCl4

CHF3

CHCl3

CHI3

24 / 50

Category: CHEMISTRY POST UTME

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

hydrogen

ammonia

oxygen

chlorine

25 / 50

Category: CHEMISTRY POST UTME

The following uses radioactive isotopes except for

tracing reaction paths

dating elements

determining equilibrium positions

sterilization of medical equipment

26 / 50

Category: CHEMISTRY POST UTME

0.0075 mole of calcium trioxocarbonate (iv) is added to 0.015 mole of a solution of HCl. The volume of gas evolved at S.T.P is

224cm3

112cm3

168cm3

100cm3

27 / 50

Category: CHEMISTRY POST UTME

Which quantum number divides shells into orbitals?

magnetic

azimuthally

spin

Principal

28 / 50

Category: CHEMISTRY POST UTME

Lucas reagent is used to test for

alkanes

amines

alkanols

alkanoic acids

29 / 50

Category: CHEMISTRY POST UTME

Cotton is almost pure

protein

cellulose

starch

animal fibre

30 / 50

Category: CHEMISTRY POST UTME

The principal constituents of natural gas is

ethane

propane

methane

butane

31 / 50

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)

89

72

82

92

32 / 50

Category: CHEMISTRY POST UTME

The oxidation number of chlorine is +1in

NaClO

ZnCl2

KClO3

Cl2O7

33 / 50

Category: CHEMISTRY POST UTME

The metal extracted from cassiterite is

sodium

copper

calcium

tin

34 / 50

Category: CHEMISTRY POST UTME

The carbon atoms on ethane are

SP2d hybridized

SP3 hybridised

SP hybridized

Sp2 hybridised

35 / 50

Category: CHEMISTRY POST UTME

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

Hydrogen & oxygen

Carbon & Carbon

Carbon & Sulphur

Carbon & Hydrogen

36 / 50

Category: CHEMISTRY POST UTME

A mixture of sugar and sulphur can be separated by

evaporation, dissolution in water and filtration

filtration, evaporation and dissolution in water

dissolution in water, evaporation and filtration

dissolution in water, filtration and evaporation

37 / 50

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

38 / 50

Category: CHEMISTRY POST UTME

The following are uses of sulphur except

vulcanization of rubber

coating of steel to prevent rusting

manufacture of tetraoxosulphate (VI) acid

manufacture of dyes

39 / 50

Category: CHEMISTRY POST UTME

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

Addition

polymerization

Oxidation

Substitution

40 / 50

Category: CHEMISTRY POST UTME

Which of the following properties increases down a group in the Periodic Table

ionization energy

atomic radius

electron affinity

electronegativity

41 / 50

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

evaporation

Zig Zag Motion

liquefaction

42 / 50

Category: CHEMISTRY POST UTME

At 25oC and 1atm, a gas occupies a volume of 1.50dm3. What volume will it occupy at 100 oC and 1atm?

60.0dm3

18.80dm3

1.88dm3

6.00dm3

43 / 50

Category: CHEMISTRY POST UTME

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

C5H12

C15H32

C3H8

C24H48

44 / 50

Category: CHEMISTRY POST UTME

Palm wine turns sour with time because

the CO2 formed during the fermentation process has a sour taste

microbiological activity results in the production of organic acids within it.

it is commonly adulterated by the tappers and sellers

the sugar content is converted into alcohol

45 / 50

Category: CHEMISTRY POST UTME

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

4g

40g

20g

10g

46 / 50

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?

2.0

3.0

5.0

4.0

47 / 50

Category: CHEMISTRY POST UTME

Alkanals can be differentiated from alkanones by reaction with

2, 4 – dinitrophenylhydrazine

sodium hydrogen sulphite

Tollen’s reagent

hydrogen cyanide

48 / 50

Category: CHEMISTRY POST UTME

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

CO2

H2S

NO

NH3

49 / 50

Category: CHEMISTRY POST UTME

The weakest attractive force that can be observed between two molecules is

covalent

coordinates

ionic

van der waals forces

50 / 50

Category: CHEMISTRY POST UTME

When a solution of silver (I) nitrate is saturated with hydrogen sulphide, a black precipitate forms which is

Ag2S

PbS

HNO3

H2S

Insert your name and email address to display your score.

Thank you and goodluck

NameEmail

Your score is

0%

CHEMISTRY POST UTME

CHEMISTRY POST UTME

More Suggestions

Menu ↓↓↓