Chemistry Reactions/Conditions

Question 0

Nitration of benzene Reagents

Answer 0

Benzene and Nitric Acid

Question 1

Nitration of benzene conditions

Answer 1

Con. Sulphuric acid & 50 degrees under reflux

Question 2

Halogenation of benzene conditions

Answer 2

Halogen carrier, room temperature

Question 3

Phenol and bromine: conditions

Answer 3

Room temp no catalyst needed

Question 4

Observation when bromine and phenol react

Answer 4

White precipitate formed

Question 5

What is the reducing agent to reduce aldehydes and ketones

Answer 5

Warm NaBH4 with water as solvent

Question 6

Observation when Tollens reagent is added to a Aldehyde

Answer 6

Silver mirror

Question 7

Conditions/ reagents for esterification

Answer 7

Con. Sulphuric acid as a catalyst 50 degrees

Question 8

What are the two steps in preparing dyes

Answer 8

Diazotisation and coupling reactions

Question 9

Diazotisation conditions

Answer 9

Below 10 degrees

Question 10

Reducing agent used to make a phenylamine

Answer 10

Tin and hydrochloric acid

Question 11

Reagents needed to make phenylamine

Answer 11

Nitrobenzene and a reducing agent under reflux

Question 12

Conditions needed for coupling reaction

Answer 12

Alkaline

Question 13

Reactants in a coupling reaction

Answer 13

Phenol, Sodium hydroxide& diazonium salt

Question 14

Conditions for acid hydrolysis of polypeptides/proteins

Answer 14

Reflux for 24h with 6moldm-3 HCL

Question 15

Conditions for alkaline hydrolysis of polypeptides

Answer 15

Aqueous NaOH at temp above 100oC

Question 16

Oxidation reagents

Answer 16

Acidified potassium dichromate.

Question 17

Reagents and conditions required to form an amine from a halogenoalkane

Answer 17

Reagents: excess NH3
Conditions: ethanol as a solvent and reflux