Chemistry Paper 2

[egy]

for the tempreature , catalyst and pressure . ????????????????
can some one answer

 

[kahynickel]

How did it go everyone?
Just wanna know whether the percentile's gonna be low or high

Do not discuss the paper guys!! 24 hours have not passed.

You will have ample time to discuss your anxious but fruitless queries wait till 10.30 am tomorrow.

 

[JD REBORN]

T

The empirical formula was something like C6H8O7. Don't remember exactly.
And in the formation of methanol question, Le Chatelier's principle definitely had to be taken into account for temperature and pressure.

They had written in bold rate of formation of methanol.It had nothing to do with le chatleirs principle.It was simple:in each case it would increase.

 

[egy]

two marks for each so u need to explain ??

 

[aaditya menon]

T
They had written in bold rate of formation of methanol.It had nothing to do with le chatleirs principle.It was simple:in each case it would increase.

Er, le chatelier's principle talks about the change in concentration as you vary the pressure. They had clearly mentioned that we have talk about the change in the RATE OF THE REACTION as you change the temp/pressure etc. That was in bold too, if I remember. This was the trick in that question, i'll give a detailed answer tomorrow.

Anyway, more discussion in a few hours.

 

[JD REBORN]

Er, le chatelier's principle talks about the change in concentration as you vary the pressure. They had clearly mentioned that we have talk about the change in the RATE OF THE REACTION as you change the temp/pressure etc. That was in bold too, if I remember. This was the trick in that question, i'll give a detailed answer tomorrow.

Anyway, more discussion in a few hours.

Oh boy u are overcomplicating it.

 

[Arslanjaved]

can anyone tell me the answer to q 1 part of reaction between the two non metals?
first page

 

[JD REBORN]

can anyone tell me the answer to q 1 part of reaction between the two non metals?
first page

which nonmetals?

 

[Ramish Naim]

was there any question asking to draw a skeletal formula in the organic part ? and the hydrogen question in the organic section, did we have to calculate the number of moles or number of atoms ?

 

[AppleGreen]

was there any question asking to draw a skeletal formula in the organic part ? and the hydrogen question in the organic section, did we have to calculate the number of moles or number of atoms ?

number of moles

 

[fathimaash]

what about your empirical formula?

same as urs

 

[Hifsa]

which nonmetals?

The only reaction they asked about was the one between Aluminium and Chlorine

 

[Hifsa]

same as urs

C10H13O11?
I checked it thrice there and still got the same answer
But many say that C6H8O7 :/

 

[Hifsa]

number of moles

We just had to draw the skeletal formula of Cis trans isomer of an alkene, and for that you don't need to count moles

 

[SalamH]

does Al with chlorine give AlCl3 or Al2Cl6.wat i wrote ws AlCl3

 

[aaditya menon]

Oh boy u are overcomplicating it.

I really doubt that.

 

[aaditya menon]

AlCl3 or Al2Cl6?
Does Aluminum chloride react with water or dissolve in it?
The period 3 chloride which burns with a colored flame is?
The organic question, do both the -COOH groups get converted to an ester group when they react with an alcohol?

 

[xxfarhaxx]

me toooooo

my Ef ws C10H11O10???

 

[xxfarhaxx]

AlCl3 or Al2Cl6?
Does Aluminum chloride react with water or dissolve in it?
The period 3 chloride which burns with a colored flame is?
The organic question, do both the -COOH groups get converted to an ester group when they react with an alcohol?

i gues is AlCl3..
mny sy its P..bt i wrte Na
jst flpd organic!!!

 

[aaditya menon]

my Ef ws C10H11O10???

C6H8O7, definitely.