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

Which of the following properties of water is not important to the survival of living things?

If the relative atomic mass (RAM) = 1 for hydrogen and 16 for oxygen, the formula mass for H₂O₂ is:

Which one of the following would NOT give rise to a systematic error in an experiment?

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

I formed the brilliant idea of climbing the fence and to hang from the top of the rail until the bull went away.

In a plant, water and dissolved minerals are transported in the:

Instructions: Select the option A, B, C or D that BEST describe the sentence.

He advanced a step or two to meet his attacker who suddenly became alarmed and retreated back four or five paces.

The following statements describe an ordinary mercury-in-glass laboratory thermometer. Which one of them is NOT true?

A current of 2 mA is flowing through a wire. How long will it take for 6 coulombs of charge to pass?

The splitting of a beam of white light into the colours which make it up is called:

What is the value of u in the sequence 2 , 7 , 14 , 23 , 34 , u ?

When large molecules are broken down into smaller ones it is called:

Instructions: Select the option A, B, C or D that BEST describe the sentence.

Seldom do people declare that they are not the products of their environment.

In order to carry out photosynthesis, a plant needs:

After a 10% discount, an article is sold for $360. The price before the discount was

Single-celled organisms do not need a transport system because:

Which of the following can cross the placenta from mother to fetus?

A girl whose weight is 250 N walks up a slope 40 m long onto a platform 3 m high. Her gain in gravitational potential energy is:

Another name for authorised capital is

Instructions: Choose the one NEAREST in MEANING to the original sentence.

If students' efforts are rewarded they would be encouraged to work harder.