If an economy grows at an annual rate of 5% of which 3% is deemed to be due to improvement in the productivity of labour and capital combined the remaining 2% is generally attributed to?

• A. the size of population
• B. technical progress
• C. the environment
• D. the amount of natural resources

The period of a simple pendulum X is 5s. What is the period of a simple pendulum Y which makes 50 vibrations in the same time it takes X to make 20 vibrations?

• A. 12.5s
• B. 2.5s
• C. 2.0s
• D. 1.2s

(a)(i) Distinguish between a strong acid and a concentrated acid.

(ii) What is meant by amphoteric oxide? Give one example.

(b)(i) Describe the manufacture of tetraoxosulphate (VI) acid by contact process.

(ii) Write one equation each to show the action of tetraoxosulphate (VI) acid respectively as a dehydrating agent and as an oxidizing agent.

(iii) Give the reason why tetraoxosulphate classified as a heavy chemical.

Simplify \( [1 ÷ (x^2 + 3x + 2)] + [1 ÷ (x^2 + 5x + 6)] \)

• A. \( \frac{2}{(x + 1)^2} \)
• B. \( \frac{2}{(x + 1)(x + 2} \)
• C. \( \frac{2}{(x + 1)(x + 2} \)
• D. \( \frac{2}{(x + 1)(x + 3} \)

Choose the option nearest in meaning to the underlined word(s).

I wonder what will be left of his essay when theextraneous material is deleted?

• A. superfluous
• B. erroneous
• C. relevant
• D. main

An omniscient narrator in a novel

• A. detaches himself from the story
• B. knows nothing about the characters and events
• C. knows everything about the characters and events
• D. is a character in the story

In the question below choose the optionnearest in meaning to the word or phrase underlined: Your reactionunderscores the point i was making

• A. reveals
• B. proves wrong
• C. emphasizes
• D. justifies

A machine of velocity ratio 5 is used in lifting a load with an effort of 500N. If the machine is 80% efficient. Determine the magnitude of load

• A. 2500N
• B. 2000N
• C. 900N
• D. 625N

In the question below choose the word or phrase which best fills the gap in each sentence: The lawyer insisted .... the full payment of his charge

• A. with
• B. in
• C. for
• D. on

One important fact about Mary brought out in Jesus' miracle of changing water to wine was that she

• A. attendd marriage feasts regularly
• B. must intercede for a miracle to occur
• C. was a sister of the bridegroom
• D. had a deep insight of her son and His abllity