Chemistry IGCSE 0620/22 May/June 2024

[Zr2000_R]

Will there be ecf in the organic question. The answer for that was methyl propanoate and I wrote ethyl ethanoate. You had to later name the ester, name the acid and draw its structure and name the alcohol and write it's formula. I was curious if there was ecf cuz all of the parts were interlinked

 

[andreen]

In many exams, ECF is a principle used to ensure that students are not overly penalized for a single mistake that affects multiple parts of a question. If you made an initial error but correctly slitherio followed through with that mistake in subsequent parts, ECF can help you still earn partial credit for those parts.