2018 OCR A Level Chemistry paper 2

Oxfordq Cambridgeq andq RSA


Aq Levelq Chemistryq A
H432/02q Synthesisq andq analyticalq techniques

Tuesdayq 12q Juneq 2018q –q Afternoon
Timeq allowed:q 2q hoursq 15q minutes
q
*7011394988*




Youq mustq have:
• theq Dataq Sheetq forq
Chemistryq Aq (sentq withq
generalq stationery)
Youq mayq use:
• aq scientificq orq graphicalq calculator


* H 4 3 2 0 2 *




Firstq
name


Lastq
name Candidate
q
Centre number

INSTRUCTIONS
• Useq blackq ink.q Youq mayq useq anq HBq pencilq forq graphsq andq diagrams.
• Completeq theq boxesq aboveq withq yourq name,q centreq numberq andq candidateq
number.
• Answerq allq theq questions.
• Writeq yourq answerq toq eachq questionq inq theq spaceq provided.q Ifq additionalq
spaceq isq required,q useq theq linedq page(s)q atq theq endq ofq thisq booklet.q Theq
questionq number(s)q mustq beq clearlyq shown.
• Doq notq writeq inq theq barcodes.

INFORMATION
• Theq totalq markq forq thisq paperq isq 100.
• Theq marksq forq eachq questionq areq shownq inq bracketsq [q ].
• Qualityq ofq extendedq responsesq willq beq assessedq inq questionsq
markedq withq anq asteriskq (*).
• Thisq documentq consistsq ofq 32q pages.




©q OCRq 2018q OCRq isq anq exemptq
[601/5255/2]q DCq Charity Turnq over
(ST/CT)q 154180/4

, 2
SECTIONq A

Youq shouldq spendq aq maximumq ofq 20q minutesq onq thisq section.

Writeq yourq answerq toq eachq questionq inq theq boxq provided.

Answerq allq theq questions.


1 Whichq compoundq isq usedq asq aq standardq forq NMRq chemicalq shiftq measurements?

A Si(CH3)4

B CDCl3

C D2O

D CCl4


Yourq answer
[1]


2 Whichq compoundq isq aq secondaryq amide?

O CH3

A HO C CH2 N

Hq

O CH3

B HO C CH2 N

CH3

O CH3
C H3C C N

H


O CH3

D H3C C N

CH3


Yourq answer
[1]
©q OCRq
2018

, 3
3 Whichq compoundq doesq notq reactq withq nucleophiles?

A CH3CH2CHO

B CH3CHCH2

C CH3CH2COCH3

D CH3CH2CH2Cl


Yourq answer
[1]


4 Whichq structureq representsq anq alicyclicq compound?



A




B




C




D




Yourq answer
[1]




©q OCRq
Turnq
2018 over

, 4
5 Whichq moleculeq isq notq planar?

A C2H4

B C2H6

C H2CO

D HCN


Yourq answer
[1]


6 Whatq isq theq numberq ofq peaksq inq theq 1Hq NMRq spectrumq ofq
HOOCCH2CHOHCH2COOH?

A 3

B 4

C 5

D 6


Yourq answer
[1]


7 Ethanolq canq beq preparedq byq differentq reactions.

Whichq reactionq hasq theq lowestq atomq economy?

A C6H12O6q →q 2C2H5OHq +q 2CO2

B C2H4q +q H2Oq →q C2H5OH

C C2H5Brq +q H2Oq →q C2H5OHq +q HBr

D CH3COOC2H5q +q H2Oq →q C2H5OHq +q CH3COOH


Yourq answer
[1]




©q OCRq
2018