Chemistry: Post your doubts here!

[Kamihus]

WHY DO I HATE CHEMISTRY??? WHY ???

Everyone does at least everyone online right now

is it D

A if wrong correct me

What are you trying to answer? Quote the posts by clicking on 'reply'.

 

[GCE As and a level]

Everyone does at least everyone online right now


What are you trying to answer? Quote the posts by clicking on 'reply'.

Sure

 

[$$AK$$]

WHY DO I HATE CHEMISTRY??? WHY ???

Hi-5
HAHAHA

 

[SIstudy]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_12.pdf
Q9 (D)
I could make out tht glucose and fructose are structural isomers so option A and C is ruled out but cant understand how osmotic pressure is affected?

 

[GCE As and a level]

Hi-5
HAHAHA

Hi-5

 

[..sacrifice4Revenge..]

Oh Maiii Goddd how could I do this :/ silly me
thank yu
Jazak'Allah

you're too tensed :3
take it easy

Wa iyyakum ^^

 

[..sacrifice4Revenge..]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_12.pdf
Q9 (D)
I could make out tht glucose and fructose are structural isomers so option A and C is ruled out but cant understand how osmotic pressure is affected?

i suppose that would be cz water is adding into the equation.

 

[..sacrifice4Revenge..]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s07_qp_1.pdf
Q12- How is B even possible?
40-How does carboxylic acid react with an ester

They are my doubts too
if u got the answer tag me
Every thing is possible in chemistry

ok,
we dont think 1 is correct, 2 is though. 3 is absolutely not. so that leaves us with just 2 as correct and 1 with a doubt. so B it is
#CIELogic, #Chemistry

 

[GCE As and a level]

ok,
we dont think 1 is correct, 2 is though. 3 is absolutely not. so that leaves us with just 2 as correct and 1 with a doubt. so B it is
#CIELogic, #Chemistry

this is which Q??!!
I am lost

 

[..sacrifice4Revenge..]

this is which Q??!!
I am lost

http://papers.xtremepapers.com/CIE/...d AS Level/Chemistry (9701)/9701_s07_qp_1.pdf
40

 

[SIstudy]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_12.pdf

Q26 (B)
idk wht im doin wrong I tried it many times, but my answer isn't in the options :$ :/

 

[Youssef Tawil]

looks like tomorrow's gonna be a hard one , both paper 2 and 3 were easy

 

[GCE As and a level]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s07_qp_1.pdf
40

But the answer is D
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s07_ms_1.pdf

 

[GCE As and a level]

looks like tomorrow's gonna be a hard one , both paper 2 and 3 were easy

Thnx for ........

 

[..sacrifice4Revenge..]

But the answer is D
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s07_ms_1.pdf

 

[GCE As and a level]

10-A is non-polar. In D it is cancelled out. C has less difference as both are negative. B most as one negative, one positive.
16-Forms NaClO3, with hot. NaClO with cold.
23-Add H and Br to the double bonds
37-CH3CH(double bond)-CH2 so 3 can't be formed.

ZaqZainab
Here is Q37

 

[Youssef Tawil]

Thnx for ........

Hahahaha inshallah we will do well

 

[GCE As and a level]

Every one can do mistakes
Especially with this great SUBJECT

 

[..sacrifice4Revenge..]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_12.pdf

Q26 (B)
idk wht im doin wrong I tried it many times, but my answer isn't in the options :$ :/

ethanol-ethanal
46:44
2.30-x
x=2.20g

2.20 X70/100
=1.54g

 

[GCE As and a level]

Hahahaha inshallah we will do well

Inshallah
Just let us to pray for each other