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

An acid present in proteins is

• lactic acid

• amino acid

• propanoic acid

• palmitic acid

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

• hydrolysis

• condensation

• oxidation

• fermentation

Detergents are better than soaps for laundry because

• detergents are synthetic while soaps are not.

• Detergents are more soluble in water than soaps

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

• soaps are in bars while detergents are in powder form.

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

• Fructose

• Glucose

• Cellulose

• Sucrose

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

• sodium ions

• potassium ions

• calcium ions

• magnesium ions

Catalytic hydrogenation of oils results in the production of

• soaps

• detergents

• margarine

• butter

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

• are structural isomers

• reduce Fehling’s solution

• can be obtained by the hydrolysis of starch

• are soluble in water.

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

• fats

• soap

• methylpropanoate

• oils

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

• hydrochloric acid

• hydrobromic acid

• hydrocyanic acid

• hydroiodic acid

Which of the following is NOT an example of polymer?

• Starch

• Fats and Oils

• Proteins

• Chitin