FREE CHEMISTRY AND STUDY GAMES ABOUT ORGANIC

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FREE CHEMISTRY AND STUDY GAMES ABOUT ORGANIC

SYNTHESIS EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -24 Questions and Answers -format set of multiple-choice -Expert- Explanation Question 1: Write the reagents and conditions that will convert an alkene to an alkane

Answer:

H2 and Ni 200oC Question 2: Write the reagents and conditions that will convert an aldehyde to a carboxylic acid

Answer:

K2Cr2O7, H2SO4, heat Question 3: Write the reagents and conditions that will convert nitrobenzene to a phenylamine

Answer:

Sn, conc HCl then NaOH

Question 4: Write the reagent that will convert a Nitrile to an Amine

Answer:

LiAlH4

Question 5: Write the formula of two reagents that will combine a Ketone or an Aldehyde to an alcohol

Answer:

LiAlH4 or NaBH4 Question 6: Write the reagents and conditions that will convert a nitrile to a carboxylic acid

Answer:

reflux with dilute hydrochloric acid.Question 7: Write the reagents and conditions that will convert an alkene to an alcohol

Answer:

Conc H3PO4 High T and High P Question 8: Write the reagents and conditions that will convert an alcohol to an alkene

Answer:

Conc H2SO4 Question 9: Write the reagents and conditions that will convert an alcohol to an ester

Answer:

An carboxylic acid or acyl chloride , conc H2SO4, and heat Question 10: Write the reagents and conditions that will convert an alkane to a haloalkane

Answer:

HX e.g. HBr Question 11: Write the reagents and conditions that will convert an alkylhydrogensulfate to an alcohol

Answer:

Dilute with water and warm Question 12: What reagent do you use to convert an Aldehyde or Ketone to a Hydroxynitrile

Answer:

HCN

Question 13: Write the reagents and conditions that will convert a haloalkane to a nitrile

Answer:

KCN dissolved in ethanol and warm Question 14: Write the reagents and conditions that will convert a haloalkane to an alcohol

Answer:

Aqueous NaOH warm Question 15: Write the reagents and conditions that will convert a primary alcohol to an aldehyde or a secondary alcohol to a ketone

Answer:

K2Cr2O7, H2SO4, heat Question 16: Write the reagents and conditions that will convert an alkene to a haloalkane

Answer:

Halogen and UV light Question 17: Write the reagents and conditions that will convert benzene to a nitrobenzene

Answer:

Conc HNO3 conc H2SO4 50oC Question 18: What catalyst and what functional group are required to convert benzene to a phenyl ketone.

Answer:

AlCl3 and an Acid Chloride Question 19: Write the reagents and conditions that will convert a carboxylic acid to an ester

Answer:

An alcohol, conc H2SO4, and heat Question 20: Write the reagents and conditions that will convert a haloalkane to an amine

Answer:

NH3 heat under pressure

Question 21: To convert an amine to an amide you have to react the amine with a reagent with what functional group?

Answer:

Acyl Chloride Question 22: Write the reagents and conditions that will convert a haloalkane to an alkene

Answer:

KOH dissolved in ethanol, high temperature Question 23: Write the reagents and conditions that will convert benzene to a cyclohexane

Answer:

H2 Ni catalyst, 200oC Question 24: Write the reagents and conditions that will convert an alkene to an alkylhydrogensulfate

Answer:

Conc H2SO4 180oC