QUESTIONS OF CHEMISTRY ATP OCT/NOV 2013 (50700

[Unicorn_guy]

YES I WAS ALSO ASKING ABOUT LAST QUESTION OF LAST PART AND YOU ARE TELLING ME SECOND LAST PART CAN YOU TELL WAHT WAS LAST PART AND HOW MANY MARKS IT CONTAINED LAST PART ONLY ?

I forgot

 

[Sharukh khan]

yar in electrloysis the tabel was given we have to finde the increase in mass of cathode then we have to draw the graph on increase in mass againt time
and they ask some two question related to graph and next part was about coloure change BUT WHAT WAS THE PART AFTER THIS QUESTION AND HOW MUCH MARKS IT CONTAIN

 

[Unicorn_guy]

4 marks i think

 

[Yazka Shathir]

Did anybody notice that the titration question was from 2001 paper, octoeber November?

 

[Unicorn_guy]

Yup i noticed...and i noticed that you are from Sharafuddin school?

 

[thementor]

Did anybody notice that the titration question was from 2001 paper, octoeber November?

seriously?

 

[thementor]

what was the colour change when KMnO4 was added
i wrote colourless to purple

Actually it was green since the Fe 2+ ions are green in colour and when KMn04 is added, initially puprple colour is seen then after oxidation, colourless
so change green to colourless

 

[Sharukh khan]

Actually it was green since the Fe 2+ ions are green in colour and when KMn04 is added, initially puprple colour is seen then after oxidation, colourless
so change green to colourless

yar can you tell me all the question parts after graph question in which we have to draw a graph of increasing mass at cathode! plz tell me all the question parts after this!

 

[thementor]

yar can you tell me all the question parts after graph question in which we have to draw a graph of increasing mass at cathode! plz tell me all the question parts after this!

Leeme tell u the whole question:
(a) Material used for inert electrode
(b) what is observed at the cathode
(c) What is observed at the other electrode
(d) Complete table and draw graph
(e) & (f) read values from graph
(g) Why and how does the colour change?
(h) Draw a sketch graph for copper electodes (or non-inert electrodes)
(i) Describe colour change if any for non-inert electrode(in other words the copper electrode)

 

[Sharukh khan]

Leeme tell u the whole question:
(a) Material used for inert electrode
(b) what is observed at the cathode
(c) What is observed at the other electrode
(d) Complete table and draw graph
(e) & (f) read values from graph
(g) Why and how does the colour change?
(h) Draw a sketch graph for copper electodes (or non-inert electrodes)
(i) Describe colour change if any for non-inert electrode(in other words the copper electrode)

ok how much marks does last two parts contain?

 

[thementor]

ok how much marks does last two parts contain?

(h) 1 mark
(i) 2 marks

 

[Talha Farooqui BSS]

HALLO GYS I HAVE GIVEN A PAPPER OF CHEMISTRY ATP TODAY THE QUESTION WHICH I COULD REMEMBER ARE POSTED!
Sodiam hudroxide was added to water the temprature change in thermomometer was given and you have to find the temprature change

actually the temp was increased the next qusetion was what type of process has occured in tgis reaction the answer was exothermin rection!
and in next qustion you have to drow the energy profile diagrame ! and you have to write the product sodium hydroxide at right side and you have to label enthalpy change!

the next question was how to preapare ammonium nitrtae ! you all know this

and the next was write the name of any other fertiliser except ammonium nitrate
and the next was you have to tell the test of nitrate ion !

and in tick cross portion there were only to complicated qusteion other was easy on question was how to obtain pure water from sodium choloride you have to tick on frictional distillation
and othere MCQ was related to organic chemistry the 1 mole of alken react with one mole of bromine somthing like that i dont remember

and other section was test of anion and cation ! this was easy at the end the examinar ask that what was the formula of compound! anser was al2(so4)3

other section was all about calculation it was easy! the last one qustion was about electrlysis it was also easy!
THANKS

thnx bro

 

[irfan.kheerdali]

what are the chemistry o level grades november 2013

 

[sweetiepie]

https://www.xtremepapers.com/community/threads/atp-notes.20798/

 

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