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BECE Science 2018 Paper

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Question : 35

Total: 40

Which of the following physical properties of water are correct? Water I . is a colourless liquid.

II. is a universal solvent.

100^{\circ} \mathrm{C}

at standard atmosphere pressure.

IV. has a density of

5\,\mathrm{kgcm}^{-3}

4^{\circ} \mathrm{C}

I and II only
II and III only
I, II and III only
II, III and IV only

Solution:

Concept:

Identify which listed physical properties of water are true.

Explanation:

I. Water is a colourless liquid: correct.

II. Water is often called a universal solvent because it dissolves many substances: correct.

III. Water boils at

100^{\circ} \mathrm{C}

at standard atmospheric pressure: correct.

IV. The density of water at

4^{\circ} \mathrm{C}

is

1\,\mathrm{g\,cm}^{-3}

, not

5\,\mathrm{kg\,cm}^{-3}

: incorrect.

So the correct statements are I, II and III only.

Answer:

Option C: I, II and III only.

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