The bleaching action of chlorine gas is effective due to the presence of

• A) hydrogen chloride
• B) water
• C) air
• D) oxygen

Which of the following raw materials is used in the plastic industry ?

• A. Calcium
• B. Ethene
• C. Hydrogen
• D. Methane

One of the major advantages of specialization is that?

• A. the worker becomes a tenderer of machines
• B. it causes more employment of labour
• C. less machinery is required for production
• D. the worker wastes less time between operations

The victory of the small Greek democracy of Athens over the mighty Persian Empire was furious because Athens had interceded for the other Greek city - states in revolt against Persian domination. In anger the king sent an enormous army to defeat Athens. He thought it would take drastic steps to pacify the rebellious part of the empire.

Persia was ruled by one man. In Athens, however all citiens helped to rule. Emboldened by this participation, Athenians were prepared to die for their city-state. Perhaps this was the secret of the remarkeable victory at the marathon,the Persian tried to fool some Greek city states by claiming to have come in peace. The frightened city of Delos refused to believe this. Not wanting to abet the conquest of Greece, they fled from their city and did not return until the Persians had left. They were wise, for the president next conquered the city of Eritrea and captured its people.

Tint Athens stood alone against Persia. The Anthenian people to their sanctuaries. There they prayed for deliverance. They asked their gods to expedite their victory. The Anthenians refurbished their weapons and moved to the plan of Marathon where their little band would meet the Persians. At the last moment, soldiers from Plataea reinforced the Anthenian troops.

The Anthenian army attacked and Greek citizens fought bravely. The power of the mighty Persians was offset by the love that the Anthenians had for their city. Athenians defeated the Persians in both archery and combat. Greek soldiers seized Persians sheep and burned them and the Persians fled in terror. Herodotus, a famous historian, reports 6400 persians died, compared to only 192 Athenians.

Athens had _________ the Greek-states against Persians.

• A. refused to help
• B. wanted to fight
• C. intervened on behalf
• D. given orders to fight

Read the extract and answer the question

I prithee, when thou seest that act afoot,

Even with the very comment of thy soul

Observe mine uncle: if his occulted guilt

Do not itself unkennel in one speech,

It is a dammed ghost that we have seen.....

(Act 1, Scene Two, Lines 73-77)

The scene after this consists of the

• A. closet scene
• B. dumb show
• C. graveyard scene
• D. ghost scene

Stevedores as a term in foreign trade means men who

• A) inspect goods in ships
• B) import goods by ships
• C) collect duties
• D) load and unload ships

Which of the following stimuli are not perceived through the skin of mammals?

• A. Light
• B. Pressure
• C. Pain
• D. Heat

(a) State two;

(i) laws of solid friction;

(ii) advantages of friction;

(iii) methods of reducing friction.

(b) Draw and label a diagram of a pulley system with velocity ratio of 5.

(c)(i) Show that the efficiency L, force ratio M.A. and the velocity ratio V.R. of a machine are related by the equation \(E = \frac{M.A.}{V.R}\) x 100%.

(ii) The efficiency of a machine is 80%. Calcuate the work done by a person using the machine to raise a load of 300 kg through a height of 4 m.[ g = 10 ms\(^{-2}\) ]

Osei and Yabo were in partnership sharing profits and losses in the ratio of 2:3. On admitting Takwa, the profit and loss sharing ratio was charged to 1:1:1. Suppose Takwa paid N30 000 for goodwill , this amount would be?

• A. credited to Takwa's current account
• B. debited to goodwill account
• C. share to all the partners' capital account
• D. credited to the old partners' capital account

If N2,500.00 amounted to N3,50.00 in 4 years at simple interest, find the rate at which the interest was charged

• A. 5%
• B. 7\(\frac{1}{2}\)%
• C. 8%
• D. 10%