A gas that will turn orange potassium heptaoxodichromate (lV) solution to clear green is?

• A. sulphur (lV) oxide
• B. hydrogen sulphide
• C. sulphide (lV) oxide
• D. hydrogen chloride

2H2O (l) + 2F2(g) → 4HF(aq) + O2(g). In the reaction above, the substance that is being reduced is

• A) O2(g)
• B) H2O(l)
• C) F2(g)
• D) HF(aq

In which of the following groups of animals is the malpighian tubule found?

• A. Lizards, snakes and frogs
• B. Crickets, houseflies and grasshoppers
• C. Millipedes, centipedes and scorpions
• D. earthworms, roundworms and flatworms

when Prophet Muhammed (S.A.W) led the Muslims in a triumphant entry into Makkah, all Makkans were assured of their safety if they entered the sacred mosque, remained indoors in their homes or

• A. entered the house of Abu Sufyan
• B. prostrated themselves before Muhammed (S.A.W)
• C. surrendered all their belongings
• D. free all detained Muslims

The thoracic region of the vertebral column is made up of __________ vertebrae.

• A) 5
• B) 7
• C) 4
• D) 12

Fill the each gap with the most appropriate option from the list option from the list provided.

This imposing edifice, ....... a fortune to build?

• A. had costed
• B. have cost
• C. costed
• D. cost

In each of the following sentences, there is one word underlined and one gap. From the list of words lettered A - D, choose the word that is most nearly opposite in meaning to the underlined word and that will, at the same time, correctly fill the gap in the sentences.

Femi is verypresumptuous quite unlike his late father who was a rather......man

• A. chaste
• B. pure
• C. honest
• D. modest

Look at this series: 500, 509, 518, 527, ... What number should come next?

• A. 536
• B. 414
• C. 530
• D. 445

In Paul's Epistle to the Galatians, as long as an heir is a child, he is under

Production of naked seeds is a distinctive feature of the group of plant called

• A. grasses
• B. conifers
• C. legumes
• D. palms