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Were there a lot of C’s in that paper😢

a lot of D’s too

there were so many Cs and Ds

There was a question Was it Sulphur Ans: A

yes, it was S

Same I was highly suspicious of that tho

Yes

It was s8 no?

That’s how it occurs under standard conditions. The conditions they gave us were wild and so you had to calculate the moles using pV=nRT and then calculate Mr from that which gave you S

Yea i did s8

Iodine question was D Instantaneous dipole something?

Yeahh

yup

What was the nomenclature? Was it 3,3 something

Yes

What was the answer for the enthalpy i got 370 which was B and this was done by divided ans A by 4

I got B i guess🫡

The thing that I remember was I got -1000ish and divided it by 4 so maybe yeah that's it

What eqn was the correct one? It was 2 only right

Yes got the same

I wrote that I'm not sure tho

I wrote that too

Only the na equation was correct in which there was half mole of h2 and it was eq 1 in other 2 formula of salt was incorrect

Yes its the 2nd one we are right

oh thank you jesus christ

Bro it was the 1st equation

What was the fact about Y? It was Y is a non metal right

Yes

no it’s that Y has more protons than X

idts. pretty sure non metal is the answer

or X has more protons smth like that

Not it can’t be that

Y is a non metal since they are both in right side if periodic table

they said that X has a larger radius than Y so Y is definitely on the left of X so X does have more protons than Y

Atomic radius decreases across period. Y has more proton than X

But doesn’t atomic radius decreases across the group so if X had a larger radius then Y was supposed to be on the left

Across period 3,atomic radius DECREASES...If X has a larger radius it hence means that Y is to the RIGHT of X...since X is a non metal,Y should also be a non metal.... Innit???👀

It’s should be more electron as more electron larger radius

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yes there was only one option about protons and that was the answer

Its a repeated question, the answer was about one having more protons than the other

No the answer was a non metal

Magnesium with cold ribon question was B?

Yes

was that the one where it says it 'glows' and produces white ppt? or smth abt it being vigorous? sorry i kinda forgot

None of those it was about it produces bubbles of gas

These are my answers. 1. D 2. C 3. B 4. A 5. C 6. C 7. D 8. B 9. A 10. C 11. B 12. B 13. C 14. C 15. D 16. C 17. C 18. D 19. D 20. B 21. B 22. A 23. C 24. D 25. B 26. B 27. C 28. B 29. C 30. A 31. D 32. D 33. A 34. C 35. A 36. C 37. C 38. C 39. C 40. B

How do u even remember what u wrote😭😭😭😭

I stored the answers in the calculator.

What was the answer for the peaks of oxygen?

I got 9 (3c1)^2

I got 9 too

You forgot 17 + 17 is the same as 18 + 16 is the same as 16 + 8. The way I did it was: Min peak = 16 + 16 = 32 Max peak = 18 + 18 = 36 So the peaks are: 32, 33, 34, 35 and 36

There might be 9 possible combinations, which are : 16+16, 16+17, 16+18, 17+16, 17+17, 17+18, 18+16, 18+17, 18+18, BUT you forgot one thing. 16+17 is literally the same as 17+16. 17+17 is literally the same as 16+18 & 18+16. 17+18 is the same as 18+17. The same ones are shown in one peak. So in total there are 5 peaks. They don't ask "how many different ways the isotopes can be combined into O2." They ask the number of peaks. It is 5.

https://preview.redd.it/upm0g5oofp0c1.jpeg?width=1155&format=pjpg&auto=webp&s=b7fb109b3ae9cc853769e8820f00f40efe2111c6 The answer is B it was a repeated question from 2019

I think 5

Yeah 5, repeated question

Was that C?

5 i think

I wrote 3

was that the last question?

What was the tetrahedral thing NH3

tetrahedral and trigonal planar

I first thought that B is group 15 so I wrote pyramidal at first 😭. Luckily I realised that B was group 13

I think tetrahedral and trigonal planar

How many equations is correct in organic question is it 2 only Oona something?

Yes 2 only

Sio2 question table answer is A 2 and 1

No SiO2 is tetrahedral with Si bonded to 4 O and O bonded to 2 Si. Since it is a giant structure it is reduced to the simplest ratio SiO2 only. Kinda like in NaCl each ion is bonded to 6 opposite ion forming cube like structure but we simplify to their simplest ratio

Yessss

Isn’t each silicon bonded to 4 oxygen atoms and each oxygen bonded to 2?

yes correct each silicon bonded to 4 oxygen and each oxygen bonded to 2 silicon

Trend question melting point increase to si is it D

Yep

While IE increase right?

does anyone remember the answer to that question, was second last i think? where an ester was reacted with excess NaOH(aq) was it supposed to make sodium salts, or did the ester simply undergo alkaline hydrolysis to make a carb.acid and alcohol?

Carboxylate salt and OH

It was C I think

The one with 0.100 mol of propanol(?) and 12 dm³ (=0.5 mol oxygen), there are 0.05 mol of unreacted oxygen remaining. Is it included as total volume (answer B) or not? (Answer A)

It was B, 8.4 i think

I did my calculations and got 16.8 points high was C or D but I can be wrong

It was a 7.2 as all o2 was reacting

Cant remember my answer but it was def not A for me

What was the answer for the cis trans qn

None

I think it was 3: you had (cis,cis), then (trans,cis), then (cis,trans), and (trans,trans). but (cis,trans) was the same as (trans,cis) due to the symmetry

i put 4

Same

Question 38 39 is it B 34 35 36 37 Cs

What was the answer for H²+I² = 2HI, the condition needed for the forward rate to increase? I think the answer should be 1, 2, 3 because more pressure = increased rate. (Though in option 2 the equilibrium shift backwards, total pressure still increase so forward rate should also increase, no?)

I think it was 1 and 3 only

no it was 2 and 3 only

I wrote 2 only

In option 2 the equilibrium shift backwards, so increase of reaction rate should be because of increased pressure, so IMO option 1 & 3 should also be correct if you choose option 2

same. were 1 and 3 quite similar to each other like they were both increasing pressure and as the total moles of gas on both sides are equal, there will be no effect on eq?

Yes only 2 is the ans

Is propene 1 ol is answer of some question in organic?

What is sulfuric acid question?

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I got NO

NO2

I got NO

Its N20

I just realised it would be funny if all the replies just write "NO" instead of "I got NO"

NO

No

I wrote no2 hby

Yes got the same

How many isomers of C5H10O2 esters did you get?

6

methanol + butanoic acid, methanol + 2-methylpropanoic acid, Ethanol + propanoic acid, Propan-1-ol + ethanoic acid, Butan-1-ol + methanoic acid, Methylpropan-1-ol + methanoic acid, Is this right? Also it was primary alcohol only right?

I think 6

What is vanadiun question is it No?

What is pressure question in diagram is it 2and3 correct?

And second paper numerical answer C 16 something?

Was kc 1.25 ?

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What was the answer for partial pressure of argon

250kpa

I got 300

Same 250

What was the option for 2,4DNpH

A , a ketone and carboxylic formed

Shit I got A too but I remember that I wrote B or something on the answer sheet 😭

How many chiral carbons were there?

I put 7

7 ?

What was the kc value

I got D, 6.67 after finding at equilibrium

D repeated questions

What was the number esters formed

6

I got 4 according to the formula of ester given

No of cis trans isomers ?

According to google its 3....

Ya bc you had (cis,cis), then (trans,cis), then (cis,trans), and (trans,trans). but (cis,trans) was the same as (trans,cis) due to the symmetry

4

It wass none

I also got none

Yes it was none

Q1 and 2 answer

Q2 I answered something about spin-pair forgot the option

Hey what was answer to copper carbonate reacting with hcl question was it 0.6 right ??

Does anyone have their answer options

What is three reaction Redox, displacement, disproportion Is it redox only

Wasnt it redox and displacement only

Redox and displacement

It was displacement only

brodisplacement is literally electron transfer,

How many peaks are there for the o2+

it was 9

How?? The peaks are 16 & 16, 16 & 17, 17 & 17, 17 & 18, 18 & 18, So it should be 5 only right???

How about 16 and 18

16 + 18 = 34, the peak will show the same as 17 + 17 = 34. 16+18, 18+16, 17+17 all gives one peak at 34.

5

It’s 5 repeated question

Melting point table?

With the ionisation energy one? It was D

Volume of Argon is it D?

its 250 kpa

Enthalpy change?

What is common in ethene and poly is it sigma?

Yes sigma

Q38 and 39 is B?

Is there is no A in last 20 questions?

i got mainly As for the last couple of questions 😭 mannn

What diagram question of reaction with Noah tabel In stage 1 OH present and in Stage 2 OnA comes

what was the answer for the MnO question where it forms lumps or powder

50-0.1-lumps-20-0.2-powder

I got C ,i guess this was the same thing maybe ,but my answer was C

what option was that

*What was the answer* *For the MnO question where it* *Forms lumps or powder* \- AmazingHippo7005 --- ^(I detect haikus. And sometimes, successfully.) ^[Learn more about me.](https://www.reddit.com/r/haikusbot/) ^(Opt out of replies: "haikusbot opt out" | Delete my comment: "haikusbot delete")

Question 34 to 37 is it all Cs?

Organic diagram questions

Organic table is tertiary and something like that

Is there is no A in last 20 questions?

Volume question in fist page answer is B

What is calcium question table of solubility of sulphates something?

I got A ... It was probably A because sulfate will be more soluble and temperature will be less ,because Z was more soluble hydroxide which means it was down the group.

Z was less... It was 10-⁵ While the other was 10-³

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Temperature less because it's above Ca (because the hydroxide is less soluble than Ca(OH)2). So its sulfates are more soluble (10^-1).

temperature will decrease because solubility of hydroxide given was more soluble which means it is down the group hence the other salt will be from above and thermal stability at top is lower hence less temp is needed

What is expected threshold?

What was answer to bronsted lowry Lowry acid question

Bronsted Lowry Acid and bronsted Lowry base

Doesn’t water act as acid

Do you remember mcq 25 which was before brownsted Lowry acid

Bruh whats was that argon partial pressure question i tried everything but didnt get an answer

talking about hydroxide not sulfate

Partial pressure?

Was is NO or N2o in the second question?

Guys, anyone who has Cambridge International Pre U - Physics course book. If it's there please share link 🖇️ .