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Author Topic: CHEMISTRY PAPER 1 HERE  (Read 37878 times)

Offline girl_92

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Re: CHEMISTRY PAPER 1 HERE
« Reply #210 on: June 11, 2009, 04:48:21 pm »
Quote from: Aishath on June 11, 2009, 04:44:58 pm
Quote
lemme chk this out it cannot be ethl ethanoate wait a sec
it cannot be if consider it on the basis of a single bond den all of dem have single bonds even the basic formula of CnH2n+2 doesnt apply den how is it possible
I have no idea.....
i think the mark scheme is wrong cos many times it happened to the other papers....
So the ans. should be pentane
[/quote]
no dude how can the markin scheme be wrong  can any one else answer this
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Offline astarmathsandphysics

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Re: CHEMISTRY PAPER 1 HERE
« Reply #211 on: June 11, 2009, 04:49:10 pm »
Quote from: madee on June 11, 2009, 04:32:09 pm
Quote from: notty_me on June 11, 2009, 04:31:22 pm
cn any1 plz attach chem ppr 1 oct08????????
download it frm freeexampapers.com

That notorius website
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Offline sweetest angel

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Re: CHEMISTRY PAPER 1 HERE
« Reply #212 on: June 11, 2009, 04:50:01 pm »
ahm...does any1 knw wat difference it makes if the solution is concentrated or not during electrolysis??
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Offline astarmathsandphysics

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Re: CHEMISTRY PAPER 1 HERE
« Reply #213 on: June 11, 2009, 04:51:38 pm »
It does

concentrated solution means higher current and faster reaction
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Offline Ghost Of Highbury

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Re: CHEMISTRY PAPER 1 HERE
« Reply #214 on: June 11, 2009, 04:53:28 pm »
Quote from: madee on June 11, 2009, 04:48:21 pm
Quote from: Aishath on June 11, 2009, 04:44:58 pm
Quote
lemme chk this out it cannot be ethl ethanoate wait a sec
it cannot be if consider it on the basis of a single bond den all of dem have single bonds even the basic formula of CnH2n+2 doesnt apply den how is it possible
I have no idea.....
i think the mark scheme is wrong cos many times it happened to the other papers....
So the ans. should be pentane
it has to be pentane...
it is soo surely an alkane
good luck for ur exam anyway//
no dude how can the markin scheme be wrong  can any one else answer this
[/quote]
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Offline Aishath

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Re: CHEMISTRY PAPER 1 HERE
« Reply #215 on: June 11, 2009, 04:53:37 pm »
Quote
I have no idea.....
i think the mark scheme is wrong cos many times it happened to the other papers....
So the ans. should be pentane
no dude how can the markin scheme be wrong  can any one else answer this
[/quote]
Well bt it cant b any other ans!!!!!!!
Cos it says "STRUCTURE OF ALKANE"
It cant b ethy ethanoate which is in the mark scheme!!!!
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Offline girl_92

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Re: CHEMISTRY PAPER 1 HERE
« Reply #216 on: June 11, 2009, 04:55:26 pm »
Quote from: Aishath on June 11, 2009, 04:53:37 pm
Quote
I have no idea.....
i think the mark scheme is wrong cos many times it happened to the other papers....
So the ans. should be pentane
no dude how can the markin scheme be wrong  can any one else answer this
Well bt it cant b any other ans!!!!!!!
Cos it says "STRUCTURE OF ALKANE"
It cant b ethy ethanoate which is in the mark scheme!!!!
[/quote]
hmm i noe hey astar u r a tuto ryt can u solve this 4 us
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Offline astarmathsandphysics

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Re: CHEMISTRY PAPER 1 HERE
« Reply #217 on: June 11, 2009, 04:55:46 pm »
Quote from: Aishath on June 11, 2009, 04:30:53 pm
Quote from: madee on June 11, 2009, 04:23:33 pm
Quote from: Aishath on June 11, 2009, 04:20:02 pm
Can someone help me for ques. 36 in OCT/NOV 1997?
can u send me the paper i dont have it or atlst write the comp que
Well i ll write the ques.
"Which structure is that of an alkane?
A.Ethanoic acid
B. Propanol
C. Ethyl Ethanoate
D. Pentane"


definitely pentane- the only hydrocarbon. Pentane is a hydrocarbon
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Offline girl_92

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Re: CHEMISTRY PAPER 1 HERE
« Reply #218 on: June 11, 2009, 04:57:19 pm »
Quote from: astarmathsandphysics on June 11, 2009, 04:55:46 pm
Quote from: Aishath on June 11, 2009, 04:30:53 pm
Quote from: madee on June 11, 2009, 04:23:33 pm
Quote from: Aishath on June 11, 2009, 04:20:02 pm
Can someone help me for ques. 36 in OCT/NOV 1997?
can u send me the paper i dont have it or atlst write the comp que
Well i ll write the ques.
"Which structure is that of an alkane?
A.Ethanoic acid
B. Propanol
C. Ethyl Ethanoate
D. Pentane"


definitely pentane- the only hydrocarbon. Pantane is a hydrocarbon
ok i think all of us say its pentane so tht means the marking scheme is wrong
By the way Thanks all of u :)
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some people sleep to dream while othrs wakeup to follow dem im the second type how abt u

Offline sweetest angel

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Re: CHEMISTRY PAPER 1 HERE
« Reply #219 on: June 11, 2009, 04:57:33 pm »
Quote from: astarmathsandphysics on June 11, 2009, 04:51:38 pm
It does

concentrated solution means higher current and faster reaction
yeh but does it affect results at the electrodes...i mean whther the metal or hydrogen is reduced?
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Offline Aishath

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Re: CHEMISTRY PAPER 1 HERE
« Reply #220 on: June 11, 2009, 04:58:23 pm »
Quote from: astarmathsandphysics on June 11, 2009, 04:55:46 pm
Quote from: Aishath on June 11, 2009, 04:30:53 pm
Quote from: madee on June 11, 2009, 04:23:33 pm
Quote from: Aishath on June 11, 2009, 04:20:02 pm
Can someone help me for ques. 36 in OCT/NOV 1997?
can u send me the paper i dont have it or atlst write the comp que
Well i ll write the ques.
"Which structure is that of an alkane?
A.Ethanoic acid
B. Propanol
C. Ethyl Ethanoate
D. Pentane"


definitely pentane- the only hydrocarbon. Pentane is a hydrocarbon

Ok then thanks!!!
So the final and conformed ans. is "pentane"!!!
Thank u for the help from everyone :)
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Offline astarmathsandphysics

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Re: CHEMISTRY PAPER 1 HERE
« Reply #221 on: June 11, 2009, 04:59:15 pm »
yes and if the ms says otherwise it is WRONG!
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Offline girl_92

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Re: CHEMISTRY PAPER 1 HERE
« Reply #222 on: June 11, 2009, 04:59:34 pm »
Quote from: Aishath on June 11, 2009, 04:58:23 pm
Quote from: astarmathsandphysics on June 11, 2009, 04:55:46 pm
Quote from: Aishath on June 11, 2009, 04:30:53 pm
Quote from: madee on June 11, 2009, 04:23:33 pm
Quote from: Aishath on June 11, 2009, 04:20:02 pm
Can someone help me for ques. 36 in OCT/NOV 1997?
can u send me the paper i dont have it or atlst write the comp que
Well i ll write the ques.
"Which structure is that of an alkane?
A.Ethanoic acid
B. Propanol
C. Ethyl Ethanoate
D. Pentane"


definitely pentane- the only hydrocarbon. Pentane is a hydrocarbon

Ok then thanks!!!
So the final and conformed ans. is "pentane"!!!
ya
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some people sleep to dream while othrs wakeup to follow dem im the second type how abt u

Offline sweetsh

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Re: CHEMISTRY PAPER 1 HERE
« Reply #223 on: June 11, 2009, 05:00:15 pm »
It's pentane ofcourse
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Offline IGCSE hater!

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Re: CHEMISTRY PAPER 1 HERE
« Reply #224 on: June 11, 2009, 05:01:06 pm »
how are you people studying for chemistry paper 1?
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