hii Irin,

For CUCET M.Sc. chemistry answer key , you need to visit official website and then login with your registration number . Then you will get official answer key .

for official website visit - https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.cucetexam.in/&ved=2ahUKEwjnifrypcPjAhVH4nMBHSZqAiYQFjAAegQIBBAB&usg=AOvVaw1hgA5s1ySXlF8iTFc9Emyb

hope it help!!