Qualification > Sciences

CHEMISTRY PAPER 1 HERE

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Aishath:

--- 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

--- End quote ---
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!!!!

girl_92:

--- 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

--- End quote ---
no dude how can the markin scheme be wrong  can any one else answer this

--- End 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!!!!
[/quote]
hmm i noe hey astar u r a tuto ryt can u solve this 4 us

astarmathsandphysics:

--- 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?

--- End quote ---
can u send me the paper i dont have it or atlst write the comp que

--- End quote ---
Well i ll write the ques.
"Which structure is that of an alkane?
A.Ethanoic acid
B. Propanol
C. Ethyl Ethanoate
D. Pentane"


--- End quote ---

definitely pentane- the only hydrocarbon. Pentane is a hydrocarbon

girl_92:

--- 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?

--- End quote ---
can u send me the paper i dont have it or atlst write the comp que

--- End quote ---
Well i ll write the ques.
"Which structure is that of an alkane?
A.Ethanoic acid
B. Propanol
C. Ethyl Ethanoate
D. Pentane"


--- End quote ---

definitely pentane- the only hydrocarbon. Pantane is a hydrocarbon

--- End quote ---
ok i think all of us say its pentane so tht means the marking scheme is wrong
By the way Thanks all of u :)

sweetest angel:

--- Quote from: astarmathsandphysics on June 11, 2009, 04:51:38 pm ---It does

concentrated solution means higher current and faster reaction

--- End quote ---
yeh but does it affect results at the electrodes...i mean whther the metal or hydrogen is reduced?

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