Chemistry P3 oct/nov 2013 Discussion

[Pradeep Adhikari]

Guys, lets be united. Lets discuss about questions that may appear in 24 oct chemistry P3.

 

[Pradeep Adhikari]

Fix questions:
1. Ion test which will be getting harder this time and as far as i guess the pattern may be different for ion test.......
2. There are more possibilities for rate of reaction since enthalpy change are coming almost everytime these days....
3. Organic Chemistry....
#These are just guesses. Don't leave other topics... thank you.

 

[Pradeep Adhikari]

Burette reading:
For a burette of 50 cm^2, we can measure easily for 0.10 cm^3, 0.20 cm^3 and so on write. But what if the miniscus comes between 0.10 and 0.20. So we can estimate that the measurement is 0.15 cm*3. Since we can measure volume upto 2 decimal place, we always write burette reading upto 2 dp.

 

[insomniac]

and i dont think acid base titration would come

 

[a1b2c3d4e5]

does anyone have any guesses?

 

[insomniac]

please someone helpppp

 

[insomniac]

Well apparently the problem is all those who were good enough to get the apparatus and all got through in May/June and now for Oct/Nov we are left with all those who relied on other people(no offence to all but it includes me too) so basically to sum up We Are in a Deep Shit and in other or rather formal words 'We are on our practice abilities to get through'

Yeah thats that!

but its my tou first time

 

[insomniac]

unluckiest me

 

[MustafaMotani]

lol shut up.

useless to preach a donkey

 

[MustafaMotani]

I like to talk for people! Btw How are you preparing for practical anyway? You cant revise past paper, So what do you do?

just assume titre volumes .. do all the working.. check it from a reliable person ..

 

[MustafaMotani]

what's that wink emoticon at the end? trying to flirt with a donkey?

you wish bro ..

 

[insomniac]

any one tell me the borax crystals question appered in which years paper? im stuck at calculations

 

[Zainey]

how is there organic chemistry in the practical? which type of question are you talking about Pradeep Adhikari

 

[Pradeep Adhikari]

how is there organic chemistry in the practical? which type of question are you talking about Pradeep Adhikari

Yes, there is. We check whether the solution is alcohol or aldehyde or ketone. We use reagents like potassium dichromate, tollen's reagent/Fehling's solution and 2,4-DNPH.
See Pastpaper: 2010 May june 33