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GCE Chemistry (F324 - Polymers and Synthesis) Quiz on Reaction Conditions Quiz F324, created by sophie.holland96 on 05/16/2014.

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Reaction Conditions Quiz F324

Reaction Conditions Quiz F324

Question 1 of 16

1

What are the reaction conditions for the bromination (halogenation) of benzene?

Select one of the following:

  • Br2

  • Br2 / FeBr3

  • Br2 / HCl

Explanation

Question 2 of 16

1

What are the reaction conditions for the nitration of benzene?

Select one of the following:

  • Conc HNO3, Conc HCL, 50 degrees

  • Conc HNO2, Conc HCl, 40 degrees

  • HNO3, HCL 10 degrees

Explanation

Question 3 of 16

1

What are the conditions for making phenylamine from nitrobenzene?

Select one of the following:

  • Sn catalyst/conc HCl

  • Sn catalyst/conc HCl and reflux

  • Fe catalyst and reflux

Explanation

Question 4 of 16

1

Select the correct conditions below for diazotisation (creating a benzenediazonium ion from phenylamine)

Select one or more of the following:

  • NaNO2

  • HCl (aq)

  • below 10 degrees

  • below 20 degrees

  • H2SO4

  • Chlorine gas

  • HNO3

Explanation

Question 5 of 16

1

The conditions for creating an azo dye are...
Phenol and acidic

Select one of the following:

  • True
  • False

Explanation

Question 6 of 16

1

How can you make sodium phenoxide from phenol?

Select one or more of the following:

  • Add NaOH

  • Add Na

  • Add NaNO3

  • Add chlorine

Explanation

Question 7 of 16

1

How do you make an aldehyde from a primary alcohol?

Select one or more of the following:

  • Oxidise with acidified potassium dichromate. Example of an acid could be sulphuric acid.
    Reflux

  • Oxidise with Tollen's reagent. And sulphuric acid.
    Distil.

  • Oxidise with acidified potassium dichromate. Example of an acid could be sulphuric acid.
    Distil immediately.

Explanation

Question 8 of 16

1

How do you reduce an aldehyde/ketone to form an alcohol?

Select one or more of the following:

  • Add NaBH4

  • Add NaBH4 , ensure the mixture is aqueous.

  • Add HCL and alcohol

Explanation

Question 9 of 16

1

How do you reduce an aldehyde/ketone to form an alcohol?

Select one or more of the following:

  • Add NaBH4

  • Add NaBH4 , ensure the mixture is aqueous.

  • Add HCL and alcohol

Explanation

Question 10 of 16

1

How would you oxidise a secondary alcohol to a ketone?

Select one of the following:

  • Reflux with acidified potassium dichromate (suitable acid would be sulfuric).

  • Reflux with hydrochloric acid

  • Add NaBH4 (aq) and warm

Explanation

Question 11 of 16

1

How would you test for an aldehyde using Tollen's reagent (ammoniacal silver nitrate)?

Select one of the following:

  • Make Tollen's reagent fresh using silver nitrate, add sodium hydroxide to form a precipitate and then just dissolve the precipitate using ammonia. Add your aldehyde to the solution of Tollen's, warm the mixture, and observe the formation of a silver mirror (precipitate).

  • Make Tollen's reagent fresh using silver nitrate, add sodium hydroxide to form a precipitate and then just dissolve the precipitate using ammonia. Add your aldehyde to the solution of Tollen's, and observe the formation of a silver mirror (precipitate).

  • Add your aldehyde to the solution of bottled Tollen's reagent, and observe the formation of a silver mirror (precipitate).

Explanation

Question 12 of 16

1

How would you make an ester?

Select one of the following:

  • Add alcohol and carboxylic acid. In the presence of a sulfuric acid catalyst. Reflux

  • Add alcohol and carboxylic acid. In the presence of a sulfuric acid catalyst.

  • Add alcohol and carboxylic acid. In the presence of a sulfuric acid catalyst. Distil

  • Add alcohol and acid. In the presence of a sulfuric acid catalyst.

  • Add alcohol and carboxylic acid. In the presence of a nitric acid catalyst.

Explanation

Question 13 of 16

1

How would you go about conducting acid hydrolysis of an ester?

Select one of the following:

  • Ensure an excess of water,
    Dilute HCl catalyst,
    Reflux

  • Ensure an excess of water,
    Dilute NaOH
    Reflux

  • Dilute HCl,
    Reflux

Explanation

Question 14 of 16

1

How would you go about conducting an alkaline hydrolysis on an ester?

Select one of the following:

  • Aqueous NaOH,
    Reflux

  • HCl

  • NaOH
    Distil

Explanation

Question 15 of 16

1

How would you convert a halogenoalkane to an alcohol?

Select one of the following:

  • Add NaOH/water,

  • Add NaOH,
    Reflux

  • Add NaOH/water,
    Reflux

Explanation

Question 16 of 16

1

How would you make an aliphatic amine from a halogenoalkane?

Select one of the following:

  • Add excess ammonia, in an ethanol solvent, and reflux

  • Add excess ammonia, in an ethanol solvent

  • Add ammonia, in an ethanol solvent, and reflux

Explanation

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