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OCR Foundation p1 specimen

Last updated 5 months ago

15 questions

Untitled Section 2

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Question 1

1.

Chromatography

Crystallisation

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Question 2

2.

It is a dull grey colour.

It is in Group 4 of the periodic table.

It is in Period 6 of the periodic table.

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Question 3

3.

3 g

4 g

11 g

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Question 4

4.

83.0

90.0

106.0

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Question 5

5.

0.01 nm

50 nm

1000 nm

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Question 6

6.

Charges

Numbers of electrons

Numbers of neutrons

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Question 7

7.

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

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Question 8

8.

Gas phase

Mobile phase

Solid phase

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Question 9

9.

0.17

0.42

0.83

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Question 10

10.

Close together - in continuous random motion

Close together - vibrating about a fixed point

Far apart - in continuous random motion

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Question 11

11.

Bitumen

Diesel

Fuel oil

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Question 12

12.

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Question 13

13.

CH_{2}

C_{2}H_{4}

C_{5}H_{10}

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Question 14

14.

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Question 15

15.