Question Library — KalmiPrep by Kalmitech

Chemistry UTME / JAMB 1989 Chemical Bonding & Intermolecular Forces

The bond which joins two ethanoic acid molecules in the liquid state is

A

a covalent bond

B

an ionic bond

C

a dative covalent bond

D

a hydrogen bond

medium Difficulty

Chemistry UTME / JAMB 1989 Organic Chemistry II: Functional Groups, Polymers & Biomolecules

The alkaline hydrolysis of fats and oils produces soap and

A

propane 1, 1, 3 - triol

B

propane - 1,2,3 - triol

C

propane - 1,3,3 - triol

D

propane - 1, 2, 2 - triol

medium Difficulty

Chemistry UTME / JAMB 1989 Organic Chemistry I: Hydrocarbons & Crude Oil

The gas responsible for most of the fatal explosions in coal mines is

A

butane

B

ethene

C

ethane

D

methane

medium Difficulty

Chemistry UTME / JAMB 1989 Organic Chemistry I: Hydrocarbons & Crude Oil

Three liquids X, Y and Z containing only hydrogen and carbon were burnt on a spoon. X and Y burnt with sooty flames while Z did not. Y is able to discharge the colour of bromine water whereas X and Z cannot. Which of the liquids would be aromatic in nature?

A

X and Z

B

Y

C

X

D

Z

medium Difficulty

Chemistry UTME / JAMB 1989 Stoichiometry, Mole Concept & Volumetric Analysis

It can be deduced from the vapour pressure curves above that

Attached Figure / Diagram

A

liqiud 1 has the highest boiling point

B

liquid ll has the highest boiling point

C

liquid lll has the highest boiling point

D

liquid lll has the lowest boiling point

medium Difficulty

Chemistry UTME / JAMB 1989 Kinetic Theory of Matter & Gas Laws

Which of the curves in the above graph illustrates the behaviour of an ideal gas?

Attached Figure / Diagram

A

W

B

X

C

Y

D

Z

medium Difficulty

Chemistry UTME / JAMB 1989 Chemical Energetics & Thermochemistry

The above diagram gives the potential energy profile of the catalyst and uncatalysed reactions of X(g) + Y(g) → XY(g). Deduce the respective activation energies in KJ of the catalysed and uncatalysed reverse reactions: XY(g) → X(g) + Y(g)

Attached Figure / Diagram

A

300, 500

B

500, 300

C

-300, -500

D

-500, -300

medium Difficulty

Chemistry UTME / JAMB 1989 Water, Solutions & Solubility

If in the graph above 1 dm 3 of a saturated solution of KCL is cooled from 80^\circC, the mass of crystals deposited will be [K = 39, Cl = 35.5]

Attached Figure / Diagram

A

7.45 g

B

14.90 g

C

74.50 g

D

149.00 g

medium Difficulty

Chemistry UTME / JAMB 1989 Stoichiometry, Mole Concept & Volumetric Analysis

The above graph shows a typical heating curve from the solid phase through the liquid phase to the gaseous phase of a substance. Which part of the curve shows solid and liquid in equilibrium?

Attached Figure / Diagram

A

T

B

U

C

X

D

Y

medium Difficulty

Chemistry UTME / JAMB 1989 Organic Chemistry I: Hydrocarbons & Crude Oil

Use the figure above to answer this question. Which of the following compounds is an isomer of the compound

Attached Figure / Diagram

A

B

C

D

medium Difficulty

Chemistry UTME / JAMB 1989 Organic Chemistry I: Hydrocarbons & Crude Oil

Use the figure above to answer this question. Which of the following is NOT an isomer of the compound?

Attached Figure / Diagram

A

B

C

D

medium Difficulty

Chemistry UTME / JAMB 1989 Chemical Energetics & Thermochemistry

CO(g) + H\(_2\)O(g) \(\to\) \(CO_{2g}\) + H\(_2\)(g) \(\Delta\)H = - 4100J. Which of the following factors favour the formation of hydrogen in the above reaction? i. high pressure. ii. low pressure iii. high-temperature iv. use of excess steam

A

i, iii and iv

B

iii only

C

ii, iii and i

D

iv only

medium Difficulty

Chemistry UTME / JAMB 1989 Chemical Energetics & Thermochemistry

CO(g) + H\(_2\)O(g) \(\to\) \(CO_{2g}\) + H\(_2\)(g) \(\Delta\)H = - 4100J. Which of the following factors favour the formation of hydrogen in the above reaction? i. high pressure. ii. low pressure iii. high-temperature iv. use of excess steam

A

i, iii and iv

B

iii only

C

ii, iii and i

D

iv only

medium Difficulty

English Language UTME / JAMB 1989 Lexis, Structure & Register (Cloze & Vocabulary)

From this passage, we learn that nuclear exchange in the northern hemisphere would be

A

inconceivable

B

inevitable

C

fatal to mankind

D

partially destructive

medium Difficulty

Biology UTME / JAMB 1989 Variety of Organisms & Classification of Living Things

A multinucleate body without internal cell boundaries is characteristics

A

bryop

B

fungi

C

algae

D

gymnosperms

medium Difficulty