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OCR Foundation p1 specimen

Last updated 10 months ago

15 questions

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Chromatography

Crystallisation

It is a dull grey colour.

It is in Group 4 of the periodic table.

It is in Period 6 of the periodic table.

3 g

4 g

11 g

83.0

90.0

106.0

0.01 nm

50 nm

1000 nm

Charges

Numbers of electrons

Numbers of neutrons

Melting point of rubidium (°C): 39 - Melting point of caesium (°C): 29

Melting point of rubidium (°C): 40 - Melting point of caesium (°C): 25

Melting point of rubidium (°C): 29 - Melting point of caesium (°C): 41

Gas phase

Mobile phase

Solid phase

0.17

0.42

0.83

Close together - in continuous random motion

Close together - vibrating about a fixed point

Far apart - in continuous random motion

Bitumen

Diesel

Fuel oil

CH_{2}

C_{2}H_{4}

C_{5}H_{10}