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IDI-ARABA SENIOR HIGH SCHOOL 1ST TERM 2025/26 CHEMISTRY TEST SS3

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

An acid present in proteins is

a)

lactic acid

b)

amino acid

c)

propanoic acid

d)

palmitic acid

2.

The reaction represented by the equation: C6H12O6 → 2C2H5OH + 2CO2 is known as

a)

hydrolysis

b)

condensation

c)

oxidation

d)

fermentation

3.

Detergents are better than soaps for laundry because

a)

detergents are synthetic while soaps are not.

b)

Detergents are more soluble in water than soaps

c)

scum is precipitated when soaps are used with hard water but not with detergents.

d)

soaps are in bars while detergents are in powder form.

4.

Which of the following carbohydrates does NOT usually occur in the crystalline form?

a)

Fructose

b)

Glucose

c)

Cellulose

d)

Sucrose

5.

Locally produced soap in which wood ash is used as the base is usually soft because the wood ash contains a lot of

a)

sodium ions

b)

potassium ions

c)

calcium ions

d)

magnesium ions

6.

Catalytic hydrogenation of oils results in the production of

a)

soaps

b)

detergents

c)

margarine

d)

butter

7.

Which of the following is NOT correct of glucose and fructose? They

a)

are structural isomers

b)

reduce Fehling’s solution

c)

can be obtained by the hydrolysis of starch

d)

are soluble in water.

8.

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

a)

fats

b)

soap

c)

methylpropanoate

d)

oils

9.

The harmful chemical that must be removed from cassava during garri production is

a)

hydrochloric acid

b)

hydrobromic acid

c)

hydrocyanic acid

d)

hydroiodic acid

10.

Which of the following is NOT an example of polymer?

a)

Starch

b)

Fats and Oils

c)

Proteins

d)

Chitin

11.

Glucose can be obtained from starch by

a)

hydrogenation

b)

hydrolysis

c)

dialysis

d)

dehydration

12.

Which of the following is a disaccharide?

a)

Fructose

b)

Starch

c)

Glycogen

d)

Sucrose

13.

The by-product of the fermentation of sugar to ethanol is

a)

propane-1,2,3-triol

b)

ethylethanoate

c)

propanol

d)

carbon(IV) oxide

14.

A positive reaction to Fehling’s test indicates the presence of

a)

starch

b)

reducing sugars

c)

oxidizing agents

d)

alkanols

15.

Which of the following polymers contains nitrogen?

a)

Nylon

b)

Polyvinylchloride

c)

Polyethene

d)

Cellulose

16.

Which of the following establishments uses the process of fermentation in its operation?

a)

Fertilizer plant

b)

Textile industry

c)

Brewery

d)

Soap manufacturing industry

17.

The reaction of sucrose with dilute HCl produces

a)

an alkanoate

b)

glucose and fructose

c)

a black mass carbon

d)

a polysaccharide

18.

The reaction of vegetable oil with a solution of wood ash is

a)

saponification

b)

neutralization

c)

hydrogenation

d)

esterification

19.

The condensation of several amino acids molecules gives

a)

long chain alkanoic acids

b)

secondary alkanols

c)

alkanoates

d)

proteins

20.

Fats are classified as

a)

hydrocarbons

b)

alkanoates

c)

alkanols

d)

carbohydrates