IGCSE CHEMISTRY SOLVED past paper 0620/42/F/M/22 - Feb/March 2022 Paper 42

[@anwarulhaqchemistrytutor]

25:43 multiply C2H4 by 4 and not C2H6

[@RyZ.2007]

Yes thank u

[@anwarulhaqchemistrytutor]

🙂

[@maylight27]

In question 4, is zinc moving towards the cathode or anode?

[@anwarulhaqchemistrytutor]

zinc is anode in this cell and losing electrons (being oxidizied) simple cells (galvanic or voltaic) are no longer part of syllabus so just prepare electrolysis.

[@maylight27]

@@anwarulhaqchemistrytutor How do you know it’s the anode, aren’t metal supposed to be the cathode (or is this from the old syllabus?) thanks

[@zbstella]

hi！can you just send me the pdf of this paper as a link below the chat box? thx a lot!!

[@anwarulhaqchemistrytutor]

drive.google.com/file/d/1NlLtWq41xE7PtvAgQ2BgVqbQxhvuokvf/view?usp=drivesdk