Chemistry: Post your doubts here!

[Hadi Murtaza]

Im starting AS level Which book shall you recommend for me in order to get A*

Edexcel or Cambridge ?

 

[Ionisation]

Edexcel or Cambridge ?

Cambridge AS Chemistry

 

[♣♠ Magnanimous ♣♠]

Im starting AS level Which book shall you recommend for me in order to get A*

the new edition

 

[ShreeyaBeatz]

Please help me on the reaction of ethanal and propanal. Like what happens? A question was in M/J/09 paper 2
The explaination is given here - http://research.cm.utexas.edu/nbauld/teach/ch610bnotes/ch18/crossaldol.htm
BUT HOW??

 

[Thought blocker]

Which question in paper 2 ??

 

[Thought blocker]

Cambridge AS Chemistry

For CIE use chemistry course book by Roger Norris.

 

[Abdel Moniem]

Please help me on the reaction of ethanal and propanal. Like what happens? A question was in M/J/09 paper 2
The explaination is given here - http://research.cm.utexas.edu/nbauld/teach/ch610bnotes/ch18/crossaldol.htm
BUT HOW??

Question Number?

 

[Sasuke Uchiha]

Anybody have tips or hints on the pratical paper (Paper 3)?

 

[Sasuke Uchiha]

Could someone please tell me where is the discussion of paper 3?

 

[Muskan Achhpilia]

Hi can anyone please help me with the following questions-


The answer is B, if possible can someone please highlight the chiral centres cause i thought it should be C


The answer is D, i don't get this one at all.


The answer is B though I thought it can equally be A or B.


The answer is C


The answer is B


The answer is C, that is option 2 and 3 is correct.


The answer is D

Thank you so much for your effort and time!

 

[shaheerrn]

can someone make a marking scheme for this

 

[Thought blocker]

♣♠ Magnanimous ♣♠ Do help this buddies. This is your subject. Why are you not helping?

 

[♣♠ Magnanimous ♣♠]

♣♠ Magnanimous ♣♠ Do help this buddies. This is your subject. Why are you not helping?

okay but some of them idk so i am not answering

 

[Thought blocker]

okay but some of them idk so i am not answering

Answer those in which you are confident, and in which you aren't, just write that, please wait for others to answer.

 

[♣♠ Magnanimous ♣♠]

Answer those in which you are confident, and in which you aren't, just write that, please wait for others to answer.

okay

 

[Thought blocker]

okay

Start.

 

[♣♠ Magnanimous ♣♠]

Start.

right now i am going but till night i will do it for sure.

 

[Thought blocker]

right now i am going but till night i will do it for sure.

Of course, solve it when ever you are free.

 

[Rockstar RK]

Somebody pl suggest me that will i have to mug up the ph ranges for different indicators or not... And will i have to remember the end points of them???

 

[Abdel Moniem]

i answered question paper 21 June 2014 chemistry AS