2025/ 2026 A-Level June 2024 OCR Chemistry B Paper 1 Including Mark Scheme 100% Verified with Correct Questions and Answers

A LEVEL JUNE 2024 OCR CHEMISTRY
A LEVEL JUNE
B PAPER
20241 OCR
INCLUDING
CHEMISTRY
A LEVEL
MARKJUNE
BSCHEME.pdf
PAPER
20241 OCR
INCLUDING
CHEMISTRY
MARKBSCHEME.pdf
PAPER 1 INCLUDING MARK SCHEME.pdf




Monday 10 June 2024 – Morning
A Level Chemistry B (Salters)
H433/01 Fundamentals of Chemistry
Time allowed: 2 hours 15 minutes




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A LEVEL JUNE 2024 OCR CHEMISTRY
A LEVEL JUNE
B PAPER
20241 OCR
INCLUDING
CHEMISTRY
A LEVEL
MARKJUNE
BSCHEME.pdf
PAPER
20241 OCR
INCLUDING
CHEMISTRY
MARKBSCHEME.pdf
PAPER 1 INCLUDING MARK SCHEME.pdf

,A LEVEL JUNE 2024 OCR CHEMISTRY
A LEVEL JUNE
B PAPER
20241 OCR
INCLUDING
CHEMISTRY
A LEVEL
MARKJUNE
BSCHEME.pdf
PAPER
20241 OCR
INCLUDING
CHEMISTRY
MARKBSCHEME.pdf
PAPER 1 INCLUDING MARK SCHEME.pdf



2
Section A

You should spend a maximum of 40 minutes on this section.

Write your answer to each question in the box provided.


1 An isotope of an element has a mass number of 25.

What is correct for an atom of this isotope?

A It has 12 neutrons.

B It has 25 electrons.

C It has 25 protons.

D The sum of its protons and neutrons is 25.


Your answer [1]


2 What is correct about s orbitals?

A Only elements in Group 1 or Group 2 have them.

B They always contain 2 electrons.

C They are spherical in shape.

D They can contain up to 6 electrons.


Your answer [1]


3 Which species have an electron configuration ending in s1?

A atoms of some d-block elements

B atoms of Group 13

C ions of Group 2

D ions of Group 16


Your answer [1]




© OCR 2024




A LEVEL JUNE 2024 OCR CHEMISTRY
A LEVEL JUNE
B PAPER
20241 OCR
INCLUDING
CHEMISTRY
A LEVEL
MARKJUNE
BSCHEME.pdf
PAPER
20241 OCR
INCLUDING
CHEMISTRY
MARKBSCHEME.pdf
PAPER 1 INCLUDING MARK SCHEME.pdf

,A LEVEL JUNE 2024 OCR CHEMISTRY
A LEVEL JUNE
B PAPER
20241 OCR
INCLUDING
CHEMISTRY
A LEVEL
MARKJUNE
BSCHEME.pdf
PAPER
20241 OCR
INCLUDING
CHEMISTRY
MARKBSCHEME.pdf
PAPER 1 INCLUDING MARK SCHEME.pdf



3
4 Which row has the radiations arranged in order of increasing wavelength?

A infrared < ultraviolet < visible

B infrared < visible < ultraviolet

C ultraviolet < infrared < visible

D ultraviolet < visible < infrared


Your answer [1]


5 What is correct about nuclear fusion reactions?

A They are the way in which all elements are formed.

B They join together atoms to make heavier atoms.

C They only occur under conditions of high temperature and pressure.

D They turn neutrons into protons.


Your answer [1]


6 Which species is present in an acidic solution of glycine, H2NCH2COOH?

A H3N+CH2COOH

B H3N+CH2COO–

C H2NCH2COO–

D H2NCH2COOH2+


Your answer [1]




© OCR 2024 Turn over



A LEVEL JUNE 2024 OCR CHEMISTRY
A LEVEL JUNE
B PAPER
20241 OCR
INCLUDING
CHEMISTRY
A LEVEL
MARKJUNE
BSCHEME.pdf
PAPER
20241 OCR
INCLUDING
CHEMISTRY
MARKBSCHEME.pdf
PAPER 1 INCLUDING MARK SCHEME.pdf

, A LEVEL JUNE 2024 OCR CHEMISTRY
A LEVEL JUNE
B PAPER
20241 OCR
INCLUDING
CHEMISTRY
A LEVEL
MARKJUNE
BSCHEME.pdf
PAPER
20241 OCR
INCLUDING
CHEMISTRY
MARKBSCHEME.pdf
PAPER 1 INCLUDING MARK SCHEME.pdf



4
7 In the mass spectrum of ethanoic acid (Mr = 60), what is the cause of the very small peak at
m/z = 61?

A the presence of an ethanol impurity in the ethanoic acid

B the presence of small amounts of CH3COOH2+

C the presence of 13C in the ethanoic acid

D the presence of 1H in the ethanoic acid


Your answer [1]


8 Which compound has optical isomers?

A CH3CH2COOH

B CH3CH2CONH2

C H2NCH2COOH

D H2NCH(CH3)COOH


Your answer [1]


9 Which compound will react with sodium carbonate?

A CH3COCH3

B CH3COOCH3

C CH3CH2CH2OH

D CH3CH2COOH


Your answer [1]




© OCR 2024




A LEVEL JUNE 2024 OCR CHEMISTRY
A LEVEL JUNE
B PAPER
20241 OCR
INCLUDING
CHEMISTRY
A LEVEL
MARKJUNE
BSCHEME.pdf
PAPER
20241 OCR
INCLUDING
CHEMISTRY
MARKBSCHEME.pdf
PAPER 1 INCLUDING MARK SCHEME.pdf