9701 42 FM 20 4dii)
the mark scheme suggested that the fragment lost is c2h5o or cooh but is it possible for a fragment like c3h9 (which was my answer) to be accepted? apart from the molecular mass, there were no other restraints that could possibly invalidate my answer, but i'm still not sure if it would be accepted
Posted Jul 23, 2026, 10:23 AM UTC
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