Take 5 chapter-wise practice tests of 25 questions each on Alcohols, Phenols and Ethers for NEET with +4/-1 scoring, answer review, and concise explanations.
5 original practice tests, 25 questions each, NEET 4/-1 marking, and answer review after submission.
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1. Alcohols contain the functional group:
Explanation: Alcohols have hydroxyl group attached to saturated carbon.
2. Ethers have the general functional linkage:
Explanation: An oxygen atom links two alkyl/aryl groups.
3. Phenol contains -OH attached directly to:
Explanation: Phenols differ from ordinary alcohols by aromatic attachment.
4. Alcohols have higher boiling points than alkanes mainly due to:
Explanation: Intermolecular H-bonding raises boiling point.
5. Phenol is more acidic than ethanol because phenoxide ion is:
Explanation: Negative charge delocalizes over the ring.
6. Among alcohols, acidity generally decreases with increasing:
Explanation: +I effect destabilizes alkoxide ions.
7. Alcohols can be prepared from alkenes by:
Explanation: Water adds across the double bond.
8. Phenol is industrially prepared by cumene process from:
Explanation: Acidic cleavage yields phenol and acetone.
9. Lucas reagent distinguishes alcohols based on:
Explanation: Formation of insoluble alkyl chlorides gives turbidity.
10. Tertiary alcohol gives turbidity with Lucas reagent:
Explanation: Tertiary carbocations form readily.
11. Primary alcohols on controlled oxidation generally form:
Explanation: Further oxidation can give carboxylic acids.
12. Secondary alcohols on oxidation generally form:
Explanation: The OH-bearing carbon becomes carbonyl carbon.
13. Tertiary alcohols resist oxidation under mild conditions because they lack:
Explanation: Oxidation usually needs an alpha hydrogen on the OH-bearing carbon.
14. Concentrated H$_2$SO$_4$ on heating alcohols often causes:
Explanation: Acid-catalyzed elimination removes water.
15. Williamson ether synthesis is best for preparing:
Explanation: Alkoxide reacts with primary alkyl halide.
16. Ethers on heating with excess HI usually give:
Explanation: Protonation and C-O cleavage occur.
17. Phenol reacts with bromine water to give:
Explanation: Phenol strongly activates the ring.
18. Phenol gives a violet coloration with:
Explanation: Ferric chloride forms a colored complex with phenol.
19. Ethers are generally less reactive than alcohols because they lack:
Explanation: No acidic hydrogen is attached to oxygen.
20. Anisole is best described as:
Explanation: Methoxybenzene is an ether attached to an aromatic ring.
21. Sodium phenoxide with CO$_2$ under pressure followed by acidification gives:
Explanation: This is the Kolbe-Schmitt reaction.
22. Phenol with CHCl$_3$/NaOH mainly gives:
Explanation: Formylation occurs ortho to OH under these conditions.
23. The C-O bond in phenol has partial double-bond character due to:
Explanation: Lone-pair delocalization strengthens the bond.
24. Ethanol reacts with sodium metal to liberate:
Explanation: Alcohols form alkoxides with active metals.
25. A fast way to score in this chapter is to separate questions into acidity, preparation, oxidation, and:
Explanation: FeCl$_3$, Lucas, bromine water, and sodium tests recur often.
26. Alcohols contain the functional group:
Explanation: Alcohols have hydroxyl group attached to saturated carbon.
27. Ethers have the general functional linkage:
Explanation: An oxygen atom links two alkyl/aryl groups.
28. Phenol contains -OH attached directly to:
Explanation: Phenols differ from ordinary alcohols by aromatic attachment.
29. Alcohols have higher boiling points than alkanes mainly due to:
Explanation: Intermolecular H-bonding raises boiling point.
30. Phenol is more acidic than ethanol because phenoxide ion is:
Explanation: Negative charge delocalizes over the ring.
31. Among alcohols, acidity generally decreases with increasing:
Explanation: +I effect destabilizes alkoxide ions.
32. Alcohols can be prepared from alkenes by:
Explanation: Water adds across the double bond.
33. Phenol is industrially prepared by cumene process from:
Explanation: Acidic cleavage yields phenol and acetone.
34. Lucas reagent distinguishes alcohols based on:
Explanation: Formation of insoluble alkyl chlorides gives turbidity.
35. Tertiary alcohol gives turbidity with Lucas reagent:
Explanation: Tertiary carbocations form readily.
36. Primary alcohols on controlled oxidation generally form:
Explanation: Further oxidation can give carboxylic acids.
37. Secondary alcohols on oxidation generally form:
Explanation: The OH-bearing carbon becomes carbonyl carbon.
38. Tertiary alcohols resist oxidation under mild conditions because they lack:
Explanation: Oxidation usually needs an alpha hydrogen on the OH-bearing carbon.
39. Concentrated H$_2$SO$_4$ on heating alcohols often causes:
Explanation: Acid-catalyzed elimination removes water.
40. Williamson ether synthesis is best for preparing:
Explanation: Alkoxide reacts with primary alkyl halide.
41. Ethers on heating with excess HI usually give:
Explanation: Protonation and C-O cleavage occur.
42. Phenol reacts with bromine water to give:
Explanation: Phenol strongly activates the ring.
43. Phenol gives a violet coloration with:
Explanation: Ferric chloride forms a colored complex with phenol.
44. Ethers are generally less reactive than alcohols because they lack:
Explanation: No acidic hydrogen is attached to oxygen.
45. Anisole is best described as:
Explanation: Methoxybenzene is an ether attached to an aromatic ring.
46. Sodium phenoxide with CO$_2$ under pressure followed by acidification gives:
Explanation: This is the Kolbe-Schmitt reaction.
47. Phenol with CHCl$_3$/NaOH mainly gives:
Explanation: Formylation occurs ortho to OH under these conditions.
48. The C-O bond in phenol has partial double-bond character due to:
Explanation: Lone-pair delocalization strengthens the bond.
49. Ethanol reacts with sodium metal to liberate:
Explanation: Alcohols form alkoxides with active metals.
50. A fast way to score in this chapter is to separate questions into acidity, preparation, oxidation, and:
Explanation: FeCl$_3$, Lucas, bromine water, and sodium tests recur often.
51. Alcohols contain the functional group:
Explanation: Alcohols have hydroxyl group attached to saturated carbon.
52. Ethers have the general functional linkage:
Explanation: An oxygen atom links two alkyl/aryl groups.
53. Phenol contains -OH attached directly to:
Explanation: Phenols differ from ordinary alcohols by aromatic attachment.
54. Alcohols have higher boiling points than alkanes mainly due to:
Explanation: Intermolecular H-bonding raises boiling point.
55. Phenol is more acidic than ethanol because phenoxide ion is:
Explanation: Negative charge delocalizes over the ring.
56. Among alcohols, acidity generally decreases with increasing:
Explanation: +I effect destabilizes alkoxide ions.
57. Alcohols can be prepared from alkenes by:
Explanation: Water adds across the double bond.
58. Phenol is industrially prepared by cumene process from:
Explanation: Acidic cleavage yields phenol and acetone.
59. Lucas reagent distinguishes alcohols based on:
Explanation: Formation of insoluble alkyl chlorides gives turbidity.
60. Tertiary alcohol gives turbidity with Lucas reagent:
Explanation: Tertiary carbocations form readily.
61. Primary alcohols on controlled oxidation generally form:
Explanation: Further oxidation can give carboxylic acids.
62. Secondary alcohols on oxidation generally form:
Explanation: The OH-bearing carbon becomes carbonyl carbon.
63. Tertiary alcohols resist oxidation under mild conditions because they lack:
Explanation: Oxidation usually needs an alpha hydrogen on the OH-bearing carbon.
64. Concentrated H$_2$SO$_4$ on heating alcohols often causes:
Explanation: Acid-catalyzed elimination removes water.
65. Williamson ether synthesis is best for preparing:
Explanation: Alkoxide reacts with primary alkyl halide.
66. Ethers on heating with excess HI usually give:
Explanation: Protonation and C-O cleavage occur.
67. Phenol reacts with bromine water to give:
Explanation: Phenol strongly activates the ring.
68. Phenol gives a violet coloration with:
Explanation: Ferric chloride forms a colored complex with phenol.
69. Ethers are generally less reactive than alcohols because they lack:
Explanation: No acidic hydrogen is attached to oxygen.
70. Anisole is best described as:
Explanation: Methoxybenzene is an ether attached to an aromatic ring.
71. Sodium phenoxide with CO$_2$ under pressure followed by acidification gives:
Explanation: This is the Kolbe-Schmitt reaction.
72. Phenol with CHCl$_3$/NaOH mainly gives:
Explanation: Formylation occurs ortho to OH under these conditions.
73. The C-O bond in phenol has partial double-bond character due to:
Explanation: Lone-pair delocalization strengthens the bond.
74. Ethanol reacts with sodium metal to liberate:
Explanation: Alcohols form alkoxides with active metals.
75. A fast way to score in this chapter is to separate questions into acidity, preparation, oxidation, and:
Explanation: FeCl$_3$, Lucas, bromine water, and sodium tests recur often.
76. Alcohols contain the functional group:
Explanation: Alcohols have hydroxyl group attached to saturated carbon.
77. Ethers have the general functional linkage:
Explanation: An oxygen atom links two alkyl/aryl groups.
78. Phenol contains -OH attached directly to:
Explanation: Phenols differ from ordinary alcohols by aromatic attachment.
79. Alcohols have higher boiling points than alkanes mainly due to:
Explanation: Intermolecular H-bonding raises boiling point.
80. Phenol is more acidic than ethanol because phenoxide ion is:
Explanation: Negative charge delocalizes over the ring.
81. Among alcohols, acidity generally decreases with increasing:
Explanation: +I effect destabilizes alkoxide ions.
82. Alcohols can be prepared from alkenes by:
Explanation: Water adds across the double bond.
83. Phenol is industrially prepared by cumene process from:
Explanation: Acidic cleavage yields phenol and acetone.
84. Lucas reagent distinguishes alcohols based on:
Explanation: Formation of insoluble alkyl chlorides gives turbidity.
85. Tertiary alcohol gives turbidity with Lucas reagent:
Explanation: Tertiary carbocations form readily.
86. Primary alcohols on controlled oxidation generally form:
Explanation: Further oxidation can give carboxylic acids.
87. Secondary alcohols on oxidation generally form:
Explanation: The OH-bearing carbon becomes carbonyl carbon.
88. Tertiary alcohols resist oxidation under mild conditions because they lack:
Explanation: Oxidation usually needs an alpha hydrogen on the OH-bearing carbon.
89. Concentrated H$_2$SO$_4$ on heating alcohols often causes:
Explanation: Acid-catalyzed elimination removes water.
90. Williamson ether synthesis is best for preparing:
Explanation: Alkoxide reacts with primary alkyl halide.
91. Ethers on heating with excess HI usually give:
Explanation: Protonation and C-O cleavage occur.
92. Phenol reacts with bromine water to give:
Explanation: Phenol strongly activates the ring.
93. Phenol gives a violet coloration with:
Explanation: Ferric chloride forms a colored complex with phenol.
94. Ethers are generally less reactive than alcohols because they lack:
Explanation: No acidic hydrogen is attached to oxygen.
95. Anisole is best described as:
Explanation: Methoxybenzene is an ether attached to an aromatic ring.
96. Sodium phenoxide with CO$_2$ under pressure followed by acidification gives:
Explanation: This is the Kolbe-Schmitt reaction.
97. Phenol with CHCl$_3$/NaOH mainly gives:
Explanation: Formylation occurs ortho to OH under these conditions.
98. The C-O bond in phenol has partial double-bond character due to:
Explanation: Lone-pair delocalization strengthens the bond.
99. Ethanol reacts with sodium metal to liberate:
Explanation: Alcohols form alkoxides with active metals.
100. A fast way to score in this chapter is to separate questions into acidity, preparation, oxidation, and:
Explanation: FeCl$_3$, Lucas, bromine water, and sodium tests recur often.
101. Alcohols contain the functional group:
Explanation: Alcohols have hydroxyl group attached to saturated carbon.
102. Ethers have the general functional linkage:
Explanation: An oxygen atom links two alkyl/aryl groups.
103. Phenol contains -OH attached directly to:
Explanation: Phenols differ from ordinary alcohols by aromatic attachment.
104. Alcohols have higher boiling points than alkanes mainly due to:
Explanation: Intermolecular H-bonding raises boiling point.
105. Phenol is more acidic than ethanol because phenoxide ion is:
Explanation: Negative charge delocalizes over the ring.
106. Among alcohols, acidity generally decreases with increasing:
Explanation: +I effect destabilizes alkoxide ions.
107. Alcohols can be prepared from alkenes by:
Explanation: Water adds across the double bond.
108. Phenol is industrially prepared by cumene process from:
Explanation: Acidic cleavage yields phenol and acetone.
109. Lucas reagent distinguishes alcohols based on:
Explanation: Formation of insoluble alkyl chlorides gives turbidity.
110. Tertiary alcohol gives turbidity with Lucas reagent:
Explanation: Tertiary carbocations form readily.
111. Primary alcohols on controlled oxidation generally form:
Explanation: Further oxidation can give carboxylic acids.
112. Secondary alcohols on oxidation generally form:
Explanation: The OH-bearing carbon becomes carbonyl carbon.
113. Tertiary alcohols resist oxidation under mild conditions because they lack:
Explanation: Oxidation usually needs an alpha hydrogen on the OH-bearing carbon.
114. Concentrated H$_2$SO$_4$ on heating alcohols often causes:
Explanation: Acid-catalyzed elimination removes water.
115. Williamson ether synthesis is best for preparing:
Explanation: Alkoxide reacts with primary alkyl halide.
116. Ethers on heating with excess HI usually give:
Explanation: Protonation and C-O cleavage occur.
117. Phenol reacts with bromine water to give:
Explanation: Phenol strongly activates the ring.
118. Phenol gives a violet coloration with:
Explanation: Ferric chloride forms a colored complex with phenol.
119. Ethers are generally less reactive than alcohols because they lack:
Explanation: No acidic hydrogen is attached to oxygen.
120. Anisole is best described as:
Explanation: Methoxybenzene is an ether attached to an aromatic ring.
121. Sodium phenoxide with CO$_2$ under pressure followed by acidification gives:
Explanation: This is the Kolbe-Schmitt reaction.
122. Phenol with CHCl$_3$/NaOH mainly gives:
Explanation: Formylation occurs ortho to OH under these conditions.
123. The C-O bond in phenol has partial double-bond character due to:
Explanation: Lone-pair delocalization strengthens the bond.
124. Ethanol reacts with sodium metal to liberate:
Explanation: Alcohols form alkoxides with active metals.
125. A fast way to score in this chapter is to separate questions into acidity, preparation, oxidation, and:
Explanation: FeCl$_3$, Lucas, bromine water, and sodium tests recur often.