Hello,

You can get past few years class 12 MBOSE question papers from the official site of Meghalaya Board of School Education. Follow the steps below to download the question papers:

• Open the official site of MBOSE
• Scroll down at the bottom of the home page
• At the bottom right side you will find a section named "Question papers"
• Click on the particular year under "Class XII"
• A zip file will start downloading which contains question papers of all the subjects of Class 12
• After download extract the zip file to get the pdfs
• Now open the chemistry pdfs to see the Class 12 chemistry paper of the respective year

Hope it helps!

Best of luck!