Short answer: Google Forms is a survey tool that can be bent into a quiz. ForQuiz is built for the whole teaching loop — create, run, analyse, follow up.
Making the quiz
In Forms you type each question and its 4 options one by one and mark the answer. In ForQuiz you upload the chapter PDF, tell it which pages ("1, 12-40"), add a line of instruction like "10 MCQs, moderate difficulty", and you get the quiz. Or paste text. Or paste questions you've already written — it'll take them as-is, validate the answers, and fill everything in. Either way each question is auto-tagged to a topic and gets a short "Did You Know" tidbit after it.
Running it in class
Forms gives you a form. ForQuiz gives you a live game: students join with a code, timer per question, faster correct answers score more, and after every question you see the option-wise distribution on screen so you can immediately ask why 40% picked option C. Ends with a 3rd–2nd–1st reveal.
After the quiz
Forms gives you a Sheet, and topic-wise understanding is your problem to build with formulae and pivots. ForQuiz gives you topic-wise accuracy, per-student drilldown, timing and Excel export out of the box.
The part I think you'll actually use
A week later, feed the same chapter again, pick last week's quiz as a reference, and you get a follow-up with no repeated questions but overlapping concepts. Share it as a take-home study restricted to your students (roll no. / email / college domain), one attempt each, randomised order, timed. Then compare the two: if Topic A was 80% in class and 40% a week later, that's a retention gap you can see, not guess.
One thing to know — the PDF needs selectable text. A scanned photocopy won't work.
Happy to run one for your class so you can see it live.