NEET Previous Year Questions (2014-23): Alcohols, Phenols & Ethers - Chemistry Class 12
Q.1. Complete the following reaction (2023)
[C] is ________
A: 
B: 
C: 
D: 
Ans: D
Solution:
Q.2. Identify the final product [D] obtained in the following sequence of reactions. (2023)
A: 
B: 
C: C4H10
D: 
Ans: A
Solution:
Q.3. Given below are two statements:
Statement I: The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing into group.
Statement II: o-nitrophenol, m-nitrophenol and p-nitrophenol will have same acidic strength as they have one nitro group attached to the phenolic ring.
In the light of the above statements, choose the most appropriate answer from the options given below: (2022)
A: Statement I is correct but Statement II is incorrect
B: Statement I is incorrect but Statement II is correct
C: Both statement I and Statement II are correct
D: Both Statement I and Statement II are incorrect
Ans: A
Solution:
Statement I is correct, Statement II incorrect.
Q.4. Given below are two statements:
Statement -I: In Lucas test, primary, secondary and tertiary alcohols are distinguished on the basis of their reactivity with conc. HCl + ZnCl2, known as Lucas Reagent.
Statement -II: Primary alcohols are most reactive and immediately produce turbidity at room temperature on reaction with Lucas Reagent.
In the light of the above statements, choose the most appropriate answer from the options given below: (2022)
A: Statement I is correct but Statement II is incorrect
B: Statement I is incorrect but Statement II is correct
C: Both statement I and Statement II are correct
D: Both Statement I and Statement II are incorrect
Ans: A
Solution:
Lucas test is used to distinguish 1°, 2° and 3° alcohols.
Q.5. What is the IUPAC name of the organic compound formed in the following chemical reaction? (2021)
A: pentan-3-ol
B: 2-methyl butan-2-ol
C: 2-methyl propan-2-ol
D: pentan-2-ol
Ans: B
Solution:
Q.6. Anisole on cleavage with HI gives : (2020)
A:
B:
C:
D:
Ans: C
Solution:
Q.7. Reaction between acetone and methylmagnesium chloride followed by hydrolysis will give: (2020)
A: Tert. butyl alcohol
B: Isobutyl alcohol
C: Isopropyl alcohol
D: Sec. butyl alcohol
Ans: A
Solution:
Q.8. The structure of intermediate A in the following reaction, is (2019)
A:
B:
C:
D:
Ans: B
Solution:
Q.9. In the reaction
the electrophile involved is (2018)
A: dichloromethyl cation 
B: formyl cation 
C: dichloromethyl anion 
D: dichlorocarbene 
Ans: D
Solution:
Q.10. The compound A on treatment with Na gives B, and with PCl5 gives C. B and C react together to give diethyl ether. A, B and C are in the order (2018)
A: C2H5OH, C2H6, C2H5Cl
B: C2H5OH, C2H5Cl, C2H5ONa
C: C2H5Cl,C2H6,C2H5OH
D: C2H5OH,C2H5ONa,C2H5Cl
Ans: D
Solution:
Q.11. Identify the major products P, Q and R in the following sequence of reaction: (2018)
A:
B:
C:
D:
Ans: D
Solution:
Q.12. The heating of phenylmethyl ethers with HI produces (2017)
A: iodobenzene
B: phenol
C: benzene
D: ethyl chlorides
Ans: B
Solution:
Q.13. The most suitable method of separation of 1: 1mixture of ortho and para-nitrophenols is: (2017)
A: Chromatography
B: Crystallisation
C: Steam distillation
D: Sublimation
Ans: C
Solution:
The ortho and para isomers can be separated by steam distillation. o-Nitrophenol is steam volatile due to intramolecular hydrogen bonding while p-nitrophenol is less volatile due to intermolecular hydrogen bonding which causes association of molecule.
Q.14. The reaction:
can be classified as: (2016)
A: Williamson alcohol synthesis reaction
B: Williamson ether synthesis reaction
C: Alcohol formation reaction
D: Dehydration reaction
Ans: B
Solution:
The reaction can be classified as Williamson ether synthesis reaction.
In this reaction, sodium alkoxide reacts with an alkyl halide to form an ether.
In the given reaction, cyclopentanol reacts with sodium hydride to form the sodium salt of cyclopentanolate. It then reacts with methyl iodide to form methoxycyclopentane.
Q.15. The reaction 
(2015)
A: Gatterman – Koch reaction
B: Williamson Synthesis
C: Williamson continuous etherification process
D: Etard reaction
Ans: B
Solution:
The reaction is called Williamson synthesis
Q.16. Which of the following will not be soluble sodium hydrogen carbonate? (2014)
A: o−Nitrophenol
B: Benzenesulphonic acid
C: 2, 4, 6 − trinitrophenol
D: Benzoic acid
Ans: A
Solution:
While 2,4,6-trinitrophenol, benzoic acid and benzene sulphonic acid are soluble in NaHCO3. This reaction is possible in the forward direction if acid is more acidic than H2CO3.o-nitrophenol is less acidic than H2CO3. Hence, it is not soluble in sodium hydrogen carbonate.
Q.17. Among the following sets of reactants which one produces anisole? (2014)
A: C6H5OH; neutral FeCl3
B: C6H5 −CH3; CH3COCl; AlCl3
C: CH3CHO; RMgX
D: C6H5OH; NaOH; CH3I
Ans: D
Solution:
Williamson's synthesis
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