The number of electrons shared in a single covalent bond is:

In a box, there are 3 white, 4 red and 2 blue marbles. What is the probability that a marble taken at random is NOT blue?

The interest rate on investments in a bank increased from 5 per cent per annum to 6 ¹/₂ per cent per annum. The difference in annual interest on a deposit of $4000 is

To work out the heat change in a reaction we need to know just three things, the mass, the temperature change and the:

The two main protein groups are globular and:

A loudspeaker emits a steady note.A girl sings a note which is of lower pitch but higher volume. The sound wave she is producing has:

When metals react with acids they give a salt and:

A person of blood group AB has:

In the eye, rays of light are focussed on the retina by being refracted at:

The following statements refer to the laminated core of a transformer. Which one of them is NOT true?

Instruction: Choose from the four options the word or pair of words which BEST completes the meaning of the sentence.

To conceal his true activities, the spy quickly ............ a plausible excuse for his presence there.

The number of atoms in a diatomic molecule is:

Which of the following statements is true?

8x - 4(x - 5) =

To make car bodies we use:

Which of the following characteristics MUST ALL formal groups possess?

1. Membership requirements
2. Code of conduct
3. Specific objectives
4. Elected leaders

How many subsets does the set {a, b, c, d, e} have?

Which one of the following statements about a voltmeter is NOT true?

Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.

She was not feeling well at the beginning of the journey, and sitting at the front of the car made her feel worse.

Compared to industrialised countries, developing countries: