Unit 4 Chapter 9: Chemical properties and reaction pathways

Question 1

What is the test and subsequent chemical process for Carboxylic Acids?

Answer 1

• Add to water and test pH

- Dissociation of acid relases H+ into solution –> low pH

Question 2

What is the test and subsequent chemical process for Carboxylic Acids?

Answer 2

• Add to water and test pH

- Ionisation of base releases OH- into solution –> high pH

Question 3

What is the test and subsequent chemical process for Alkenes?

Answer 3

• Add bromine water (brownish-red –> colourless)

- Two bromine atoms added to molecule at the position of the double bond

Question 4

What is the test and subsequent chemical process for Primary, secondary, and tertiary alcohols?

Answer 4

• Add acidified K2Cr2O7^2-
  and heat OR KMnO4
• tertiary alcohols will not react
• 1° alcohols react to form carboxylic acids, 2° alcohols react to form ketones, 3° alcohols will not react

Question 5

Highly electronegative atoms in functional groups cause ____

Answer 5

bond polarity and areas of partial negative and positive charge

Question 6

Polar bonds, non binding electrons, electrons in double and triple bonds create ____

Answer 6

areas of charge disparity that attract oppositely charged species –> chemical reaction

Question 7

Molecules with carboxylic acid groups will have ____

Answer 7

low pH in water

Question 8

Molecules with amine groups have____

Answer 8

high pH in water

Question 9

Molecules with carbon-carbon double or triple bonds will turn bromine water from ___

Answer 9

brownish-red to colourless

Question 10

Tertiary alcohols cannot be oxidized by ___

Answer 10

primary and secondary can with an oxidizing agent

Question 11

REMEMBER TO REVISE THE REACTION PATHWAYS

Answer 11

REMEMBER TO REVISE THE REACTION PATHWAYS