how was chemistry paper 22

[syed1995]

i hope physics is a bit lower 43 then i would be happy

I want Physics in the 36-37 range. And I will be happy

 

[A star]

Me? My paper went awesome. I completed it in 30 minutes or so.. and went through the whole paper again.. Apart from 3 marks of the 1st question and 2 marks for that Cl2 to ICl increase(Doubtful in both those) .. My paper went good and all answers have been verified.

Insha Allah hoping to get marks in the 50s

Cl2 and BrCl has no dipole and Icl has i dipole cause en value of C and I the same and CHCl3 has a dipole daredevil MustafaMotani ur views?

 

[A star]

I want Physics in the 36-37 range. And I will be happy

yup

 

[MustafaMotani]

Cl2 and BrCl has no dipole and Icl has i dipole cause en value of C and I the same and CHCl3 has a dipole daredevil MustafaMotani ur views?

BrCl is dipole.. but its just not stong dipole as compared to ICl .. since electronegativity decreases down the groUp ... Iodine least dipole ..Chlorine most dipole ...and thus resulting charge would be highre

 

[syed1995]

Cl2 and BrCl has no dipole and Icl has i dipole cause en value of C and I the same and CHCl3 has a dipole daredevil MustafaMotani ur views?

I linked it with electronegativity .. And said that there are weak van der vaal forces in Cl2, weak dipole in BrCl and strong dipole in ICl.

 

[syed1995]

BrCl is dipole.. but its just not stong dipole as compared to ICl .. since electronegativity decreases down the groUp ... Iodine least dipole ..Chlorine most dipole ...and thus resulting charge would be highre

How much would my answer get ..listed above? it was of 2 marks.

 

[A star]

BrCl is dipole.. but its just not stong dipole as compared to ICl .. since electronegativity decreases down the groUp ... Iodine least dipole ..Chlorine most dipole ...and thus resulting charge would be highre

well i am not sure cause dipole would have caused higher increase in bp/mp i guess . Cl2 has least en value difference we are not talking about dipoles but en value diff

 

[MustafaMotani]

How much would my answer get ..listed above? it was of 2 marks.

I thinks its okay to get full.

 

[A star]

I thinks its okay to get full.

man i wrote vandervaals for BrCl may be they will accept it :/

 

[MustafaMotani]

well i am not sure cause dipole would have caused higher increase in bp/mp i guess . Cl2 has least en value difference we are not talking about dipoles but en value diff

higher the en difference stronger the dipole-dipole charge

 

[A star]

higher the en difference stronger the dipole-dipole charge

yup we had to talk bout en value difference

 

[MustafaMotani]

man i wrote vandervaals for BrCl may be they will accept it :/

actually there is still some disagreement among what type of bonding occurs in some compounds like Al2O3.. maybe BrCl is the same case ...

 

[syed1995]

I thinks its okay to get full.

That's makes me quite happy... Guess the first question's 3 marks are what's gone for me then.

 

[A star]

That's makes me quite happy... Guess the first question's 3 marks are what's gone for me then.

examiner will loose ur first paper and give u full to save his job xD

 

[syed1995]

examiner will loose ur first paper and give u full to save his job xD

hahaha...

 

[A star]

oh thank god, *high five* i think i missed a couple marks though, O.N. of N in nh3 is supposed to be -3, and i wrote +3!! also i messed up the pressure of contact process (should be 100 kPa, i wrote 100 atm) *facepalm*

it could be 1 to 2 atm -_-

 

[syed1995]

it could be 1 to 2 atm -_-

Yea -,- I wrote 2atm, 450C and Vandium V Oxide catalyst.. btw 1atm is 100kPa

oh how are you preparing for computers? have you started preparations?

 

[daredevil]

Cl2 and BrCl has no dipole and Icl has i dipole cause en value of C and I the same and CHCl3 has a dipole daredevil MustafaMotani ur views?

i wrote wat mustafa wrote.... about the greater electronegaivity differnce ... the greatest electronegativity within the 3 molecules was in ICl thus it ws the answer

 

[A star]

i wrote wat mustafa wrote.... about the greater electronegaivity differnce ... the greatest electronegativity within the 3 molecules was in ICl thus it ws the answer

no the question before it in which we had to describe change in boiling points . that one is ICl it was aparent to any one who knew that an object with greater boiling point has greter force

 

[A star]

Yea -,- I wrote 2atm, 450C and Vandium V Oxide catalyst.. btw 1atm is 100kPa

oh how are you preparing for computers? have you started preparations?

started now i am revising chapters today and doing past papers tommorow and then rerevising next day