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OCR A Level Chemistry paper 2

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OCR A Level Chemistry paper 2

Institution
OCR
Course
OCR A Level Chemistry paper 2 (H432)

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OxfordkCambridgekandkRSA


A Level Chemistry A
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H432/02 Synthesis and analytical techniques
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Tuesday 12 June 2018 – Afternoon
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Time allowed: 2 hours 15 minutes
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• akscientifickorkgraphicalkcalculator



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INSTRUCTIONS
• Usekblackkink.kYoukmaykusekankHBkpencilkforkgraphskandkdiagrams.
• Completekthekboxeskabovekwithkyourkname,kcentreknumberkandkcandidateknumber.
• Answerkallkthekquestions.
• Writekyourkanswerktokeachkquestionkinkthekspacekprovided.kIfkadditionalkspacekiskrequired
,kusektheklinedkpage(s)katkthekendkofkthiskbooklet.kThekquestionknumber(s)kmustkbekclearly
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• Doknotkwritekinkthekbarcodes.

INFORMATION
• Thektotalkmarkkforkthiskpaperkisk100.
• Thekmarkskforkeachkquestionkarekshownkinkbracketsk[k ].
• Qualitykofkextendedkresponseskwillkbekassessedkinkquestionskmarkedkwithkanka
steriskk(*).
• Thiskdocumentkconsistskofk32kpages.




©kOCRk2018k [601/5255/2] OCRkiskankexemptkCharity
kDCk(ST/CT)k154180/4 Turnkover

, 2
SECTIONkA

Youkshouldkspendkakmaximumkofk20kminuteskonkthisksection.

Writekyourkanswerktokeachkquestionkinkthekboxkprovided.

Answerkallkthekquestions.


1 WhichkcompoundkiskusedkaskakstandardkforkNMRkchemicalkshiftkmeasurements?

A Si(CH3)4

B CDCl3

C D2O

D CCl4


Yourkanswer
[1]


2 Whichkcompoundkiskaksecondarykamide?

O CH3

A HO C CH2 N

HkCH

O 3


B HO C CH2 N
CH3


O CH3
C H3C C N

H


O CH3

D H3C C N

CH3


Yourkanswer
[1]
©kOCRk2018

, 3
3 Whichkcompoundkdoesknotkreactkwithknucleophiles?

A CH3CH2CHO

B CH3CHCH2

C CH3CH2COCH3

D CH3CH2CH2Cl


Yourkanswer
[1]


4 Whichkstructurekrepresentskankalicyclickcompound?



A




B




C




D




Yourkanswer
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©kOCRk2018 Turnkover

, 4
5 Whichkmoleculekisknotkplanar?

A C2H4

B C2H6

C H2CO

D HCN


Yourkanswer
[1]


6 Whatkisktheknumberkofkpeakskinkthek1HkNMRkspectrumkofkHOOCCH2CHOHCH2COOH?

A 3

B 4

C 5

D 6


Yourkanswer
[1]


7 Ethanolkcankbekpreparedkbykdifferentkreactions.

Whichkreactionkhasktheklowestkatomkeconomy?

A C6H12O6k →k2C2H5OHk+k2CO2

B C2H4k +kH2Ok→kC2H5OH

C C2H5Brk+kH2Ok→kC2H5OHk+kHBr

D CH3COOC2H5k +kH2Ok→kC2H5OHk+kCH3COOH


Yourkanswer
[1]




©kOCRk2018
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Study Level
A/AS Level
Examinator
OCR
Subject
Chemistry A
Unit
OCR A Level Chemistry paper 2 (H432)
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Uploaded on
February 12, 2025
Number of pages
35
Written in
2024/2025
Type
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Contains
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  • ocr a level chemistry paper 2
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