Preparation and properties of Ethers Quiz

Ethers Quiz

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Test your knowledge on the preparation and properties of ethers for JEE and NEET.

1. The general formula for an ether is:

• $R-O-R'$
• $R-OH$
• $R-CHO$
• $R-COOH$

2. The Williamson synthesis is used for the preparation of:

• Alcohols
• Phenols
• Ethers
• Aldehydes

3. The reaction of methyl iodide with sodium methoxide gives:

• Methanol
• Diethyl ether
• Dimethyl ether
• Ethane

4. The major product of the reaction of an excess of ethanol with concentrated sulfuric acid at $413~K$ is:

• Ethene
• Diethyl ether
• Ethanal
• Ethanoic acid

5. The reaction of diethyl ether with cold concentrated HI gives:

• Ethanol and iodoethane
• Iodoethane
• Ethane
• Ethanol

6. The boiling points of ethers are comparable to those of:

• Alcohols of higher molecular mass
• Alkanes of comparable molecular mass
• Carboxylic acids
• Ethers have very high boiling points

7. Which of the following is the best method to prepare an asymmetrical ether?

• Dehydration of alcohols
• Williamson synthesis
• Reaction with concentrated HI
• All of the above

8. Which of the following statements about ethers is correct?

• They are acidic in nature.
• They are basic in nature.
• They are neutral compounds.
• They are amphoteric.

9. The cleavage of ethers with concentrated HI is an example of which type of reaction?

• Electrophilic substitution
• Nucleophilic substitution
• Elimination
• Addition

10. The correct order of reactivity of hydrogen halides towards ethers is:

• HI < HBr < HCl
• HCl < HI < HBr
• HI > HBr > HCl
• All have equal reactivity.

11. What is the major product when anisole reacts with concentrated HI?

• Iodobenzene and methanol
• Phenol and methyl iodide
• Iodobenzene and methyl iodide
• Phenol and iodine

12. The reaction of methyl-t-butyl ether with HI gives:

• Methanol and t-butyl iodide
• Methyl iodide and t-butanol
• Methanol and t-butanol
• Methyl iodide and t-butyl iodide

13. Ethers have lower boiling points than isomeric alcohols because:

• They have a higher molecular mass.
• They cannot form intermolecular hydrogen bonds.
• They are less polar.
• They are more volatile.

14. What is the product of the reaction of diethyl ether with acetyl chloride in the presence of anhydrous $AlCl_3$?

• Ethyl acetate
• Ethyl chloride and ethanol
• No reaction
• A mixture of products

15. The reaction of a tertiary alcohol with a primary alkyl halide in Williamson synthesis is not a good method to prepare an ether because it leads to:

• Substitution reaction
• Elimination reaction
• Polymerization
• Dehydration

16. The correct order of solubility of ethers, alcohols, and alkanes of comparable molecular mass in water is:

• Alkanes > Ethers > Alcohols
• Ethers > Alcohols > Alkanes
• Alcohols > Ethers > Alkanes
• Ethers and Alcohols have equal solubility.

17. Which of the following is not a property of ethers?

• They are flammable.
• They are polar.
• They are aprotic solvents.
• They form hydrogen bonds with each other.

18. The reaction of diethyl ether with hot concentrated HI gives:

• Iodoethane and water
• Ethanol and iodoethane
• Only iodoethane
• Ethene and iodine

19. Which of the following is an example of an asymmetrical ether?

• Diethyl ether
• Dimethyl ether
• Methyl propyl ether
• All of the above

20. What is the product of the reaction of an ether with oxygen in the presence of light?

• Aldehyde
• Ketone
• Ether peroxide
• Carboxylic acid

21. The IUPAC name of methyl-n-propyl ether is:

• 1-methoxypropane
• 2-methoxypropane
• Methyl propanol
• Propyl methyl ether

22. The reaction of diethyl ether with a strong acid like concentrated HI is an example of:

• Nucleophilic substitution
• Electrophilic substitution
• Elimination
• Addition

23. Which of the following is a simple ether?

• Methyl phenyl ether
• Ethyl methyl ether
• Diethyl ether
• All of the above

24. What is the product of the reaction of an ether with cold concentrated HI?

• Alcohol and alkyl halide
• Only alkyl halides
• Alcohol and alkene
• Alcohol and water

25. The reaction of a tertiary alkoxide with a primary alkyl halide in Williamson synthesis is a good method to prepare an ether because it avoids:

• Substitution reaction
• Elimination reaction
• Polymerization
• Dehydration

Quiz Results

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