2025/ 2026 GCSE May 2024 OCR Combined Science B Paper 6 Including Mark Scheme 100% Verified with Correct Questions and Answers with Solution

GCSE MAY 2024 OCR Combined
GCSEScience
MAY 2024
B PAPER
OCR 6Combined
INCLUDING
GCSEScience
MAY
MARK 2024
B SCHEME.pdf
PAPER
OCR 6Combined
INCLUDING
Science
MARK B SCHEME.pdf
PAPER 6 INCLUDING MARK SCHEME.pdf




Friday 17 May 2024 – Morning
GCSE (9–1) Combined Science B
(Twenty First Century Science)
J260/06 Chemistry (Higher Tier)
Time allowed: 1 hour 45 minutes




GCSE MAY 2024 OCR Combined
GCSEScience
MAY 2024
B PAPER
OCR 6Combined
INCLUDING
GCSEScience
MAY
MARK 2024
B SCHEME.pdf
PAPER
OCR 6Combined
INCLUDING
Science
MARK B SCHEME.pdf
PAPER 6 INCLUDING MARK SCHEME.pdf

,GCSE MAY 2024 OCR Combined
GCSEScience
MAY 2024
B PAPER
OCR 6Combined
INCLUDING
GCSEScience
MAY
MARK 2024
B SCHEME.pdf
PAPER
OCR 6Combined
INCLUDING
Science
MARK B SCHEME.pdf
PAPER 6 INCLUDING MARK SCHEME.pdf



2
1
(a) Table 1.1 shows the diameters of some particles.

Table 1.1

Particle Diameter (m)

Carbon atom 1.54 × 10–10

Fullerene molecule 1.10 × 10–9

Silver atom 2.88 × 10–10

Platinum nanoparticle 1.00 × 10–8


(i) Which two particles have diameters with the same order of magnitude?

....................................................................... and ....................................................................... [1]

(ii) Write down the particles in order of diameter.

Smallest ........................................

........................................

........................................

Largest ........................................
[2]

(b) Nanoparticles make effective catalysts because they have a high surface area to volume ratio.

Table 1.2 shows the surface area to volume ratio of some different sized particles.

Table 1.2

Particle of Particle of
Nanoparticle
Fine Powder Coarse Powder

Size of Particle (nm) 60 600 6000

Surface Area to
0.1 0.01 0.001
Volume Ratio


Describe the relationship between the size of a particle and its surface area to volume ratio.

..........................................................................................................................................................

..........................................................................................................................................................

..........................................................................................................................................................

..................................................................................................................................................... [2]

© OCR 2024




GCSE MAY 2024 OCR Combined
GCSEScience
MAY 2024
B PAPER
OCR 6Combined
INCLUDING
GCSEScience
MAY
MARK 2024
B SCHEME.pdf
PAPER
OCR 6Combined
INCLUDING
Science
MARK B SCHEME.pdf
PAPER 6 INCLUDING MARK SCHEME.pdf

,GCSE MAY 2024 OCR Combined
GCSEScience
MAY 2024
B PAPER
OCR 6Combined
INCLUDING
GCSEScience
MAY
MARK 2024
B SCHEME.pdf
PAPER
OCR 6Combined
INCLUDING
Science
MARK B SCHEME.pdf
PAPER 6 INCLUDING MARK SCHEME.pdf



3
(c) The nanoparticle shown is a cube. This nanoparticle has a volume of 1000 nm3.



h




l w

NOT TO SCALE

Calculate the surface area of the nanoparticle.

Use the formula: surface area = 6 × (h × w)




Surface area = ....................................................... nm2
[3]




© OCR 2024 Turn over



GCSE MAY 2024 OCR Combined
GCSEScience
MAY 2024
B PAPER
OCR 6Combined
INCLUDING
GCSEScience
MAY
MARK 2024
B SCHEME.pdf
PAPER
OCR 6Combined
INCLUDING
Science
MARK B SCHEME.pdf
PAPER 6 INCLUDING MARK SCHEME.pdf

, GCSE MAY 2024 OCR Combined
GCSEScience
MAY 2024
B PAPER
OCR 6Combined
INCLUDING
GCSEScience
MAY
MARK 2024
B SCHEME.pdf
PAPER
OCR 6Combined
INCLUDING
Science
MARK B SCHEME.pdf
PAPER 6 INCLUDING MARK SCHEME.pdf



4
2 A student is investigating the reaction between calcium hydroxide and hydrochloric acid.

Ca(OH)2(s) + 2HCl (aq) CaCl 2(aq) + 2H2O(l)

(a) They want to find the temperature change during the reaction.

1 g masses of solid calcium hydroxide are added one by one to 50 cm3 of dilute hydrochloric acid
in a plastic cup.

Describe two measurements the student needs to make and the apparatus needed to make the
measurements.

1. ......................................................................................................................................................

..........................................................................................................................................................

2. ......................................................................................................................................................

..........................................................................................................................................................
[2]

(b) The table shows the student’s results:

Mass of calcium hydroxide (g) Temperature of hydrochloric acid (°°C)

0 22.0

1 29.5

2 37.0

3 44.5

4 52.0

5 59.5


Plot the results from the table on the graph.

Two points have already been plotted. [2]


(c) Draw a line of best fit. [1]




© OCR 2024




GCSE MAY 2024 OCR Combined
GCSEScience
MAY 2024
B PAPER
OCR 6Combined
INCLUDING
GCSEScience
MAY
MARK 2024
B SCHEME.pdf
PAPER
OCR 6Combined
INCLUDING
Science
MARK B SCHEME.pdf
PAPER 6 INCLUDING MARK SCHEME.pdf