Edexcel - Chemistry Unit 2 - 4 June 2013

What about Fluorine?

whats the shape and bond angles of: C2H6, C2H4, CH3OH AND CH3Cl thanks

Fluorine is an exception always. "The atom is so small that the repulsion between the in-coming electron and the seven electrons in the second shell reduces the energy liberated by the attraction between the incoming electron and the nucleus"

That's what george facer says, but I didn't quite understand it myself (if you do then I'd be grateful if you could explain it ). However I would no worry about this and stick with Cl, Br & I. Fluorine as a reducing or oxidizing agent is not mentioned in any other book & in past papers.

You mean Chlorine is the most powerful oxidizing agent of the halogens?
But all of Google says that fluorine can oxidize even chlorine and water?

C2H6 - tetrahedral 109.5
C2H4 - trigonal planar 120
(though to be fair it's 118,121,121.. but I think they'll accept 120 )
CH3OH - tetrahedral 109.5, bent 104.5
CH3Cl - tetrahedral 109.5

thank you why is c2h2 trigonal planar though?

thank you why is c2h2 trigonal planar though?

Can someone confirm this...

When we are titrating $K_2MnO_4$ it is kept in the burette.
And in iodometric tritrations iodine is in the conical flask and at the end point the starch complex turns from blueblack to colourless?

What do we need to know about fullerenes ?

Am I right to believe the mark scheme makes no sense over here ? & is not answering the question



Could someone also explain to me how to do this question :

When chlorine is added to a solution containing bromide or iodide ions, a colour
change occurs. What solvent would you add to the mixture to confirm the
identity of the halogen produced?


Thanks in advance !

what is the name of (ch3)2 chch3oh ? what does it look like?