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Ocr A Level Chemistry Paper 2: H432/02 Synthesis and analytical techniques question paper $15.69
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Ocr A Level Chemistry Paper 2: H432/02 Synthesis and analytical techniques question paper
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Ocr A Level Cquestion paper ocr a level chemistry paper 2 h43202 synthesis and analytical techniqueshemistry Paper 2 2023 Question Paper

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  • October 3, 2024
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  • ocr a level chemistry paper 2 2023 question paper
  • ocr a level chemistry paper 2 h43202
  • synthesis and analytical techniqueshemistry paper
  • ocr a level chemistry paper 2 h43202 synthesis a

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A Level Chemistry A
H432/02 Synthesis and analytical techniques
Sample Question Paper

Date – Morning/Afternoon
Time allowed: 2 hours 15 minutes


You must have:
• the Data Sheet for Chemistry A
You may use:
• a scientific calculator

* 0 0 0 0 0 0 *




First name


Last name

Centre Candidate
number number


INSTRUCTIONS
• Use black ink. You may use an HB pencil for graphs and diagrams.
• Complete the boxes above with your name, centre number and candidate number.
• Answer all the questions.
• Write your answer to each question in the space provided.
• Additional paper may be used if required but you must clearly show your candidate
number, centre number and question number(s).
• Do not write in the bar codes.

INFORMATION
• The total mark for this paper is 100.
• The marks for each question are shown in brackets [ ].
• Quality of extended responses will be assessed in questions marked with an asterisk (*).
• This document consists of 36 pages.




© OCR 2014 H432/02
[601/5255/2] DC (…) Turn over

, 2

SECTION A

You should spend a maximum of 20 minutes on this section.

Answer all the questions.

1 The displayed formula of an organic compound is shown below.




What is the systematic name of this organic compound?

A Propyl propanoate

B Propyl butanoate

C Butyl propanoate

D Butyl butanoate


Your answer
[1]




© OCR 2014 H432/02

, 3

2 Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction is
heated under reflux using the equipment shown in the diagram below.




What is the reason for heating under reflux?

A to ensure even heating

B to prevent any substances escaping

C to boil the mixture at a higher temperature

D to allow efficient mixing


Your answer
[1]

3 How many stereoisomers are there of CH3CH=CHCH(OH)CH2CH=CH2?

A 2

B 4

C 6

D 8


Your answer
[1]




© OCR 2014 H432/02 Turn over

, 4

4 The functional group in an organic compound, W, was identified by carrying out two chemical tests.
The results of the tests are shown below.

Heating with acidified sodium Addition of
dichromate(VI)(aq) 2,4-dinitrophenylhydrazine(aq)

orange solution turns green yellow/orange precipitate formed


Which compound could be W?

A CH3CH2CH2OH

B CH3COCH3

C CH3CH(OH)CH3

D CH3CH2CHO


Your answer
[1]

5 Complete combustion of 40 cm3 of a gaseous hydrocarbon X requires 240 cm3 of oxygen. 160 cm3 of
carbon dioxide forms. All gas volumes are at room temperature and pressure.

What is the formula of X?

A C4H8

B C4H10

C C6H12

D C6H14



Your answer
[1]




© OCR 2014 H432/02

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