I and II

II and III

I, II and III

I, II, III and IV

Correct Answer: I, II, III and IV

All of the above molecules will form product by hoffmann rule that is less substituted C-H bond will be attacked because more stable product will be formed via this in all cases. I. II. When leaving group are F & NH2 type then they give hoffmann product. III. IV.

Which of the following statement (s) is/are true about the following eliminations? (1) Hoffmann product is major product in I (2) Saytzeff product is major product in I (3) Hoffmann product is major product in II (4) Saytzeffproduct is major product in II

1 and 2

1 and 4

2 and 3

3 and 4

Consider the following statements.
1. When evaporation takes place, cooling takes place.
2. Evaporation takes place at all temperature, boiling takes place only at the boiling point.
3. Evaporation is a surface phenomenon.
Which of the statements given above is/are true?

Only 1

1 and 2

2 and 3

1, 2 and 3