Which of these solutions will give a white precipitate with a solution of barium chloride acidified with hydrochloric acid?

• A. Sodium trioxocarbonate (IV)
• B. Sodium tetraoxosulphate (IV)
• C. Sodium trioxosulphate (IV)
• D. Sodium sulphide

The process of changing raw materials into finished goods is ________

• A. construction
• B. extraction
• C. manufacturing
• D. marketing

The sex of a foetus is determined during

• A. meiosis
• B. copulation
• C. fertilization
• D. placentation

Animal gradually check. What is the grammatical name?

• Phrase
• verb
• Noun clause
• Adverbial clause

The organ responsible for equalising air pressure in the ear is the

• A. sacculus
• B. utriculus
• C. Eustachian tube
• D. ampulla

Primary colours of light are

• A. Red, blue and green
• B. Cyan, magneta and yellow
• C. Black, blue and green
• D. None of these colours

A man who has the trait for colour blindness marries a normal woman. What percentage of their children would be sufferers, carriers and normal respectively

• A. 25%, 25% and 50%
• B. 25%, 50% and 25%
• C. 50%, 25% and 25%
• D. 25%, 37.5% and 37%

When sodium trioxocarbonate (IV) decahydrate loses its water of crystallization to the atmosphere, the process is

• A) deliquescence
• B) efflorescence
• C) hygroscopic
• D) effervesecence

The source of fund for Mr. John who got his capital from the money he kept in bank is_____________

• A. Personal savings
• B. Bank loan.
• C. Plough-back profit.
• D. Bank overdraft.

simplify \(16^{\frac{-1}{2}}\times 4^{\frac{-1}{2}} \times 27^{\frac{1}{3}}\)

• A. 3/8
• B. 2/3
• C. 3/4
• D. 3/2