IGCSE CHEMISTRY SOLVED past paper 0620/42/M/J/22 - May/June 2022 Paper 42

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This video solves and explains Cambridge IGCSE Chemistry paper 42 May / June 2022.

Hope that everyone finds it useful and helpful before their examination !!

If you have any questions please leave them in the comments below and I will answer them all.

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Into: (00:00)
Question1: (00:12)
1 The symbols of the elements of Period 3 of the Periodic Table are shown.
Answer the following questions about these elements.
Each symbol may be used once, more than once or not at all.
Write the symbol of the element which:

Question2: (03:03)
2 Calcium hydroxide, Ca(OH)2, is slightly soluble in water.
(a) Calcium hydroxide can be made by the reaction of calcium with water.
(i) Write the chemical equation for this reaction.

Question3: (12:39)
3 Transition elements are found in the middle block of the Periodic Table.
(a) Chromium has several isotopes. Manganese has only one isotope.
(i) State what is meant by the term isotopes.

Question4: (17:18)
4 Fluorine and chlorine are halogens.
(a) Suggest the appearance of fluorine.

Question5: (25:11)
5 The reaction scheme shows five organic reactions, numbered 1 to 5.

Question6: (32:18)
6 This question is about polymers.
(a) Polymer X is a condensation polymer.
Part of the structure of polymer X is shown.

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[muhammadamin]

Thank you soo much! This has helped me alot, I'm writing tmrw, hope it goes well!!

[Yaqine_.]

Really Thank you. I'm getting ready for tomorrow's exam and you've seem to make things a lot easier.

[fathimazohra]

you are the best. can u pls make a video on all organic reactions pls pls pls

[EUNICEKAMPIRE]

thanks very much! I had tried this out and fortunately I was examined for it the next day

[josuez]

Wow i'm impressed and i hope that i'll do it tmrw🙏

[drillingcourt]

thank you so much, glad to see a good vid to help me

[prabhapatel]

In question 6) c) ii) won't it be polymerization??

[ayesha]

I think step 2 and 3 in Q4b were quite unnecessary.. or do we have to do them? since we are able to find the answer even if we didn't do these steps

[Adnan-sjet]

Hi miss I have a question, in the mark scheme the answer is “ no change” and I put “ no effect” will the examiner deduct marks

[nerdinmood]

why do u find empirical formula in no 4 if we can find just find molecular formula straightly?