In the reactivity series of metals the order is: sodium, calcium, magnesium, aluminium, which means that the most reactive metal is:

The halogens are found in:

A 10 V battery delivers a steady current of 2 A. How long will it be before 1.0 kJ of energy is supplied to the circuit?

Some plants reproduce by forming bulbs. The new plants that grow from the bulbs will be genetically identical
because:

Which of the following relations is represented by the graph shown above?

A rectangular tank is 50 cm long, 50 cm wide and 10 cm deep. The volume of liquid it will hold is

Two commonly used types of impact printers are __________.

Hydrocarbons contain carbon and:

THE ITEM is based on the following statement.

John, Simon and Harry are cousins who live in the same house.

Which of the following terms BEST describes their relationship?

One Faraday represents:

Which device has internal storage in the form of a buffer?

To make fertilisers and explosives we need:

The Item refer to the information below The following scores were obtained by eleven footballers in a goal-shoot competition:

The median score was

A dynamo connected to a circuit is being turned.Which one of the following would NOT generate a greater e.m.f.?

Which of the following are examples of environmental variation in humans?
Ⅰ hair colour
Ⅱ height
Ⅲ intelligence
Ⅳ body mass

Excretion is best defined as:

The part of the brain that processes information from the sense organs is the:

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

The better of the two athletes claim never to have used the dangerous drugs found in his possession.

When an acid neutralises an alkali the pH is likely to be:

The correct equation for photosynthesis is: