Lesson 4 (Isomers & properties of HC's)

Question 1

What is the basic deffinition of an isomer?

Answer 1

Molecules that have the same formula bu different arrangment of atoms

Question 2

What are the 4 main types of isomers?

Answer 2

1) Structual
2) Positional
3) Geometric
4) Functional groups

Question 3

What is a structual isomer?

Answer 3

They have the same number & type of atoms but the carbon chain is arranged differently (including a shape that differs from one long continous chain)

Question 4

What is a positional isomer?

Answer 4

The chain is attached the same way but the location of the pi bonds are different

Question 5

What is a geometic isomer?

Answer 5

the chain & reactive sites are the same. Just the orientation of the groups around the pi bonds are different.

Question 6

What are the 2 types of geometric isomers?

Answer 6

Cis-> same side as double bonds
Trans-> opposite sides/ends of double bonds

(placement of C’s)