All of Topic 8

Question 1

what is formed when group 1 elements react with chlorine

Answer 1

metal chloride

Question 2

how do group 2 elements react with water

Answer 2

group 2 metal + 2H2O ——> metal (OH)2 + H2

Question 3

what is produced when a group 2 or group 1 hydroxide/oxide reacts with a dilute acid.

Answer 3

salt and water is produced

Question 4

what happens to solubility of the sulfates

Answer 4

decreases down the group

Question 5

what happened to the solubility of the hydroxides

Answer 5

increases down the group

Question 6

the thermal stability of the carbonates in group 2

Answer 6

increases down the group.

Question 6

reactivity of group 1 and 2

Answer 6

increase down the group

Question 7

how do change a halogenoalkanes into alcohol.

Answer 7

reagent: hydroxide ( potassium)
condition : aqueous/water

Question 8

changing alcohol into alkene

Answer 8

reagent: concentrated phosphoric acid.
type of reaction: elimination reaction

Question 9

alcohol into halogenoalkanes

Answer 9

reagent: potassium chloride

Question 10

alcohol into alkene

Answer 10

reagent: potassium hydroxide.
conditions : should be in ethanol/ alcoholic.

Question 11

alkane into alcohol

Answer 11

reagents: sulfuric acid/
and potassium cromiade
condition: distillation

Question 12

an aldehyde when seen in a red mass spectra

Answer 12

• weak peak for O-H 3300-2000
• strong peace for C=O 1725-1700

Question 13

an -OH on a red mass spectra.

Answer 13

• bond peak for on: 3250-3200
• no peak for C=O: 1200

Question 14

ketone on mass spectra

Answer 14

strong peak C=O: 1720 - 1700

Question 15

aldehyde on infrared mass spectra

Answer 15

• strong peak for C=O: 1740-1720
• weak peak for C-H: 2950-2820