The volume of a cuboid is 54cm³. If the length, width and height of the cuboid are in the ratio 2:1:1 respectively, find its total surface area

• A. 108cm²
• B. 90cm²
• C. 80cm²
• D. 72cm²

In homes, electrical appliances and lamps are connected in parallel because

• A) Parallel connections do not heat up the wires
• B) series connections use high voltage
• C) less current will be used
• D) less voltage will be used

(a)(i) What is an acid?

(ii) List three chemical properties of tetraoxosulphate (VI) acid

(iii) Give two uses of tetraoxosulphate (VI) acid.

(b)(i) Describe a suitable laboratory procedure for preparing a sample of zinc tetraoxosulphate (VI) crystals, starting from zinc oxide.

(ii) Write two equations to show why zinc oxide is classified as an amphoteric oxide.

(c) Zinc reacts with copper (II) tetraoxosulphate (VI) according to the following equation: Zn + CuSO\(_4\) -> ZnSO\(_4\) + Cu

(i) State the type of reaction involved

(ii) Determine the mass of zinc that would react completely with 8.0g of copper (II) tetraoxosulphate (VI). [CuSO\(_4\) = 160; Zn = 65]

Leather works, carving, cloth weaving are examples of

• A. chemical industry
• B. factory industry
• C. local craft industry
• D. heavy industry

_______ is defined as the total surrounding or medium of any organism in a given area

• A. Biotic component
• B. Abiotic component
• C. Environment
• D. Ecosystem

The loss in value of an asset due to wear and tear in the course of its use is known as

• A. depreciation
• B. salvage value
• C. appreciation
• D. net worth

Read the poem below and answer the question

Dillgent foot-worker

legs lithe, foot loose

to frantic drums

and frenetic flutes

Acrobat strokes swift in the air

wrought masterly like

a frenzied antelope

Gyrating to the April music

of the lush Savannah

The atmosphere of the poem is one of

• A. anxiety
• B. excitement
• C. eagerness
• D. despair

Which of the following is a basic component of political culture?

• A. Cultural development
• B. Cultural design
• C. Cultural display
• D. Cognitive orientation

Which of the following pairs of compounds belongs to the same homologous series?

• A. C₃H₈ and C₃H₆
• B. C₄H₁₀ and C₅H₁₀
• C. C₂H₄ and C₄H₁₀
• D. C₂H₆ and C₄H₁₀

In a mixed economy, decisions to produce are taken by?

• A. men and women acting in their own best interest
• B. the government acting in the interest of the country
• C. the market women, the labour unions and the employers association
• D. private individuals, organization and the government