total 25 questions each question 4 marks chapter hydrocarbons
https://docs.google.com/forms/d/14QQi_CmQZ3qpeV7RVo3kcLg7ubErkBEqGU1-nt7MYh8/edit
https://www.youtube.com/watch?v=1eetRjqkUkQ&list=PLuR244LTfD1Dlu2JBzy6yKTCU1DBJv6oy&index=5 https://youtu.be/1eetRjqkUkQ
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