100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
OXFORD CAMBRIDGE RSA 2024 GCE Chemistry B H433/02: Scientific literacy in chemistry A Level ACTUAL QUESTION PAPER AND MARKING SCHEME (MERGED) £5.97
Add to cart
Quickly navigate to
Preview
  2.  
  3. OCR
  4.  
  5. OCR

Exam (elaborations)

OXFORD CAMBRIDGE RSA 2024 GCE Chemistry B H433/02: Scientific literacy in chemistry A Level ACTUAL QUESTION PAPER AND MARKING SCHEME (MERGED)
 0 purchase
  • Module
  • OCR
  • Institution
  • OCR

OXFORD CAMBRIDGE RSA 2024 GCE Chemistry B H433/02: Scientific literacy in chemistry A Level ACTUAL QUESTION PAPER AND MARKING SCHEME (MERGED)

Preview 4 out of 50  pages

Document information

  • October 17, 2024
  • 50
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • ocr gce chemistry b h43302 scientific literacy

Written for

  • OCR
  • OCR

Seller

avatar-seller
DistinctionGuruHuan1

Reviews received

Content preview

GCE Chemistry
BH433/02: Scientific
literacy in chemistry A
Level




OxFORD
CAMBRIDGE
AND RSA
2024
[Type the document subtitle]




OCR 2024

, Oxford Cambridge and RSA


Tuesday 18 June 2024 – Morning
A Level Chemistry B (Salters)
H433/02 Scientific literacy in chemistry
Time allowed: 2 hours 15 minutes

You must have:
• a clean copy of the Advance Notice Article (inside this
document)
• the Data Sheet for Chemistry B
You can use:
• a scientific or graphical calculator
• an HB pencil




Please write clearly in black ink. Do not write in the barcodes.

Centre number Candidate number


First name(s)

Last name


INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use the lined
pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Use the Insert to answer Question 5.
• Where appropriate, your answer should be supported with working. Marks might be given
for using a correct method, even if your answer is wrong.

INFORMATION
• The total mark for this paper is 100.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 20 pages.

ADVICE
• Read each question carefully before you start your answer.




OCR is an exempt Charity
Turn over

, 2
1 Trans fats are made from carboxylic acids with double bonds in a trans arrangement. They
sometimes improve the texture of foods, but they are harmful to health.

(a) Fig. 1.1 shows the structure of a fat molecule.

Fig. 1.1

H2C O A

HC O O
B

H2C O O
C
O

(i) The side-chains formed by three carboxylic acids are labelled A, B and C. Give

the letter of the side-chain that is:

Saturated ...............

Trans unsaturated ...............
[1]

(ii) The fat molecule in Fig. 1.1 can be represented as shown below.

Complete the equation for the hydrolysis of the fat with aqueous NaOH.

H O

H C O C R'
O

H C O C R''
O

H C O C R'''
H
[3]

(b) Long-chain carboxylic acids can be identified by converting them to their methyl esters and then using
gas–liquid chromatography.

Write the equation for the conversion of RCOOH to its methyl ester using the appropriate alcohol.




© OCR 2024

, 3

[2]




© OCR 2024

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller DistinctionGuruHuan1. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £5.97. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

68175 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 15 years now

Start selling
£5.97
  • (0)
Add to cart
Added