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OCR GCSE Chemistry A Paper 4 (Higher) - Friday, June 13, 2025 [Exam Chat]

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Reply 120

For the functional groups I put carboxyl and hydroxide I though it would be carboxyllic acid and alcohol if it asked for homologous series!??

Reply 121

Oh never mind google said it was a hydroxyl functional group not hydroxide

Reply 122

Original post
by C3c3c3
Oh never mind google said it was a hydroxyl functional group not hydroxide
Man like gaj
(edited 10 months ago)

Reply 123

what was the answer to the mcq about lilac flamefrompotassium, white ppt of BaCl, white ppt fromNaOH orthe last one i dont remember

would it be BaCl? bc there were sulfate ions in KAl(SO4)2 or whatever it was no?

Reply 124

Nah it said to identify the group 1 metal so lilac flame

Reply 125

Original post
by DevSaha
Nah it said to identify the group 1 metal so lilac flame

oh rightttt okay thank you x

Reply 126

Original post
by C3c3c3
What was the disadvantage of the fuel cell?


hydrogen from hydrocarbons

Reply 127

what was the possible answers to the question on the last page asking about a potential problem of the increasing CO2 concentration in the atmosphere, i put global warming is that fine?

Reply 128

Original post
by C3c3c3
For the functional groups I put carboxyl and hydroxide I though it would be carboxyllic acid and alcohol if it asked for homologous series!??


yh it’s carboxyl and hydroxyl i’m pretty sure

Reply 129

Original post
by axj20
what was the possible answers to the question on the last page asking about a potential problem of the increasing CO2 concentration in the atmosphere, i put global warming is that fine?

I put the same so hopefully

Reply 130

any predictions for grade boundaries this year? it was a pretty big jump from 2023 to 2024, im hoping its just a few marks less than 2024. i did the 2024 paper 1 and i found it easier than our paper 1, apparently 2024 paper 2 was relatively easy asw. anyone else also think it might be 149-152/180??

Reply 131

Original post
by ish4.p
any predictions for grade boundaries this year? it was a pretty big jump from 2023 to 2024, im hoping its just a few marks less than 2024. i did the 2024 paper 1 and i found it easier than our paper 1, apparently 2024 paper 2 was relatively easy asw. anyone else also think it might be 149-152/180??

yh i found that one easier too i think it will stay between 152-156

Reply 132

Original post
by razini0001
Man like gaj

Man like raz

Reply 133

what did you guys for the reading the meniscus questions? i think i got like 24.7?

Reply 134

Original post
by jasmineexo
what did you guys for the reading the meniscus questions? i think i got like 24.7?

i got 24.65

Reply 135

Original post
by jasmineexo
what did you guys for the reading the meniscus questions? i think i got like 24.7?

Yh same

Reply 136

Original post
by Gajendra K
i got 24.65

Oh how 😭

Reply 137

Original post
by Gajendra K
i got 24.65

vro it was 24.7

Reply 138

Original post
by razini0001
vro it was 24.7

yeah i know yaks told me

Reply 139

Original post
by studious_komi
Oh how 😭

btw u are right

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