Mistakes
Go back to what you got wrong.
Every wrong answer in a quiz is kept, with what you said beside what your study material says. When you are ready, Revisit Mistakes quizzes you on just those points, and each one leaves the list once you get it right there.
Mistakes · Organic Chemistry
4 kept
SN1 and SN2 mechanisms
Revisit MistakesWhich substrate favours SN1missed 3 times
You said: Primary alkyl halide
The material says: Tertiary. The carbocation is stabilised by three alkyl groups.
Effect of a polar aprotic solvent
You said: Slows the reaction down
The material says: It speeds SN2 up by leaving the nucleophile unsolvated.
How it works
- 1
Get one wrong
Miss a question in a quiz and the point it was testing is kept in Mistakes, under its concept, with the date you last missed it. Miss the same point again and it shows how many times.
- 2
Compare the answers
What you said sits beside the right answer, with the Source line under it: the Source's name and the page, slide or timestamp. Open or Play takes you to that passage.
- 3
Revisit them
Revisit Mistakes writes a new quiz on only the points you missed in that concept. Get one right there and it leaves the list. Miss it again later and it comes back.
The right answer comes from your study material
Every quiz question is written from passages in your Sources, and a mistake keeps the one its question came from. So the right answer comes with the place it was taken from, whether that is a page of a PDF, a slide in a deck or a moment in a YouTube video, and one tap opens it there.
It stays with the concept
A new quiz on that concept includes a question or two on the points you missed. A Lesson on it is told what you keep getting wrong, and what you struggle with in a Lesson is kept in Mistakes too. The wrong answers also count in Today, which brings a concept back when it has caught you out a few times recently.
What is kept, and the plans
Each module has its own Mistakes, grouped by concept with the most recent first. From a quiz it keeps the answer you gave, the right answer and its Source line. From a Lesson it keeps what you struggled with, under the concept the Lesson was on.
Both plans keep all of it. Revisit Mistakes is a quiz, so it comes out of the quiz allowance.
- Free
- 5 quizzes a week, Revisit Mistakes included.
- Pro
- Quizzes are unlimited, so revisit as often as you want.
Questions
When does a mistake leave the list?
When you answer that point correctly in Revisit Mistakes. A right answer in an ordinary quiz does not clear it, and missing it again brings it back.
What does Revisit Mistakes ask?
New questions on the points you got wrong in that concept, written from your Sources. You choose how many and which type, as with any Quick Quiz.
Where do I start Revisit Mistakes?
Beside each concept on the Mistakes page, on the concept's own page, and at the end of any quiz where you missed something.
Do flashcards add to Mistakes?
No. Only quiz questions and Lessons add to it. A card you mark Missed it still counts in Today.
Start with the concept you keep getting wrong.
One module is free. No card required.