Q 1744712653.     Read the following information carefully and answer the question based on them.

Six scientists `A, B, C, D, E` and `F` have to demonstrate their subjects namely Chemistry, Zoology, Botany, Physics, Geology and Maths. One scientist will demonstrate only one day. Demonstration will start from Monday and will end on Sunday. There will be a day for rest.

(i) Chemistry will immediately follow Geology.

(ii) `A`, who is a mathematician, will demonstrate either on second or last day.

(iii) `C` will demonstrate on third day, Physics will be on the fifth day.

(iv) `E`, who is zoologist, demonstrates on second day.

(v) `B` has demonstrated on Monday and the rest day will be immediately after F's demonstration day.

Chemistry is immediately preceded by which of the following subjects?

On which of the following days no demonstration will take place?