Organic Chemistry Practice Test 6

1. What will happen when glycerol is added into dimethyloxalate?

Glycerol formate

Glycerol oxalate

Dihydroxyacetone

Glycerol carbonate

2. Which of the following statement is not true about preparation of alcohol?

There is no biological process for the synthesis of glycol

French chemist Charles-Adolphe Wurtz (1817–1884) first prepared ethylene glycol in 1856

First synthesis of glycol was from "ethylene iodide" (C₂H₄I₂) with silver acetate and then hydrolyzed the resultant "ethylene diacetate" with potassium hydroxide

It was synthesized from ethylene dichloride in Germany and used as a substitute for glycerol in the explosives industry

3. Which of the following has highest boiling point?

2-hexanone

2-pentanone

3-methyl-2-butanone

butanoic acid

4. In the Rosenmund's reduction, BaSO4 taken with catalyst Pd acts as which of the following?

Absorber

Catalytic poison

Cooperator

Promotor

5. What is the intermediate form in the mechanism of the lead acetate and glycol?

Three membered cyclic ring

Four membered cyclic ring

Five membered cyclic ring

Six membered cyclic ring

6. What happens when glycol reacts with lead tetraacetate?

No reaction

Monohydric alcohols will be formed

Ketones will be formed

Aldehyde will not be formed

7. Which of the following reagent can be used to carry out this synthesis of glycol?

Seliwanoff reagent

Barfoed reagent

Benedict reagent

Baeyer’s reagent

8. What will be the product if we add water to the aldehyde?

Epoxides

Peroxides

Alcohols

Geminal diols

9. What will be the reagent and conditions required for the given reaction of preparation of glycerol form propene from given conditions respectively?

NaOH/OH^–, NBS, alk. MnO₄^–

NBS, NaOH/OH^–, OsO₄

alk. MnO₄^–, NaOH/OH^–, NBS

NBS, NaOH/OH^–, OsO₄

10. Compound which gives acetone on ozonolysis is?

C₆H₅CH=CH₂

CH₃−CH=CH−CH₃

CH₃CH=CH₂

(CH₃)₂C=C(CH₃)₂