Take 5 chapter-wise practice tests of 25 questions each on Aldehydes, Ketones and Carboxylic Acids 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. Aldehydes contain the functional group:
Explanation: Aldehydes have the terminal carbonyl group -CHO.
2. Ketones contain the functional group:
Explanation: Ketones have a carbonyl carbon bonded to two carbon groups.
3. Carboxylic acids contain:
Explanation: The carboxyl group combines carbonyl and hydroxyl.
4. Aldehydes are generally more reactive than ketones toward nucleophilic addition because they have:
Explanation: Aldehydes are both less hindered and less electron-donating.
5. Tollens reagent gives a silver mirror with:
Explanation: Aldehydes reduce Tollens reagent to metallic silver.
6. Fehling solution is reduced readily by:
Explanation: Aliphatic aldehydes reduce Fehling solution to Cu$_2$O.
7. Aldehydes on oxidation generally form:
Explanation: The carbonyl carbon is further oxidized.
8. Aldehydes on reduction generally form:
Explanation: Hydrogen adds across the carbonyl group.
9. Ketones on reduction generally form:
Explanation: Reduction converts >C=O to -CHOH-.
10. Carboxylic acids are more acidic than alcohols because:
Explanation: Charge delocalization stabilizes the conjugate base.
11. Iodoform test is given by compounds containing:
Explanation: This includes methyl ketones and alcohols oxidizable to them.
12. Acetaldehyde can be prepared from ethanol by:
Explanation: Primary alcohol gives aldehyde under controlled oxidation.
13. Benzoic acid can be obtained by oxidation of:
Explanation: Strong oxidation converts the side chain to -COOH.
14. Aldol condensation requires compounds having:
Explanation: The enolate formation needs an alpha hydrogen.
15. Cannizzaro reaction is shown by aldehydes lacking:
Explanation: Non-enolizable aldehydes undergo disproportionation.
16. Carboxylic acids react with alcohols in presence of acid to form:
Explanation: This is esterification.
17. Acid chlorides are generally more reactive than carboxylic acids because:
Explanation: Acyl substitution becomes easier with better leaving groups.
18. Lower carboxylic acids are soluble in water mainly because of:
Explanation: They form strong hydrogen bonds with water.
19. Which reagent distinguishes aldehyde and ketone best in routine NEET questions?
Explanation: Aldehydes reduce it while ketones usually do not.
20. The carbonyl carbon is generally:
Explanation: Carbonyl carbon has trigonal planar geometry.
21. HCN adds to carbonyl compounds to form:
Explanation: Nucleophilic addition of CN$^-$ followed by protonation occurs.
22. Electron-withdrawing substituents increase acidity of carboxylic acids by:
Explanation: The -I effect disperses negative charge better.
23. Acetic acid on treatment with PCl$_5$ forms:
Explanation: PCl$_5$ replaces OH with Cl.
24. A carbonyl chapter shortcut is to decide whether the reaction is nucleophilic addition, oxidation-reduction, or:
Explanation: That classification organizes most NEET carbonyl questions.
25. The most scoring areas in this chapter are named tests, acidity logic, and:
Explanation: Recognizing the carbonyl transformation is central.
26. Aldehydes contain the functional group:
Explanation: Aldehydes have the terminal carbonyl group -CHO.
27. Ketones contain the functional group:
Explanation: Ketones have a carbonyl carbon bonded to two carbon groups.
28. Carboxylic acids contain:
Explanation: The carboxyl group combines carbonyl and hydroxyl.
29. Aldehydes are generally more reactive than ketones toward nucleophilic addition because they have:
Explanation: Aldehydes are both less hindered and less electron-donating.
30. Tollens reagent gives a silver mirror with:
Explanation: Aldehydes reduce Tollens reagent to metallic silver.
31. Fehling solution is reduced readily by:
Explanation: Aliphatic aldehydes reduce Fehling solution to Cu$_2$O.
32. Aldehydes on oxidation generally form:
Explanation: The carbonyl carbon is further oxidized.
33. Aldehydes on reduction generally form:
Explanation: Hydrogen adds across the carbonyl group.
34. Ketones on reduction generally form:
Explanation: Reduction converts >C=O to -CHOH-.
35. Carboxylic acids are more acidic than alcohols because:
Explanation: Charge delocalization stabilizes the conjugate base.
36. Iodoform test is given by compounds containing:
Explanation: This includes methyl ketones and alcohols oxidizable to them.
37. Acetaldehyde can be prepared from ethanol by:
Explanation: Primary alcohol gives aldehyde under controlled oxidation.
38. Benzoic acid can be obtained by oxidation of:
Explanation: Strong oxidation converts the side chain to -COOH.
39. Aldol condensation requires compounds having:
Explanation: The enolate formation needs an alpha hydrogen.
40. Cannizzaro reaction is shown by aldehydes lacking:
Explanation: Non-enolizable aldehydes undergo disproportionation.
41. Carboxylic acids react with alcohols in presence of acid to form:
Explanation: This is esterification.
42. Acid chlorides are generally more reactive than carboxylic acids because:
Explanation: Acyl substitution becomes easier with better leaving groups.
43. Lower carboxylic acids are soluble in water mainly because of:
Explanation: They form strong hydrogen bonds with water.
44. Which reagent distinguishes aldehyde and ketone best in routine NEET questions?
Explanation: Aldehydes reduce it while ketones usually do not.
45. The carbonyl carbon is generally:
Explanation: Carbonyl carbon has trigonal planar geometry.
46. HCN adds to carbonyl compounds to form:
Explanation: Nucleophilic addition of CN$^-$ followed by protonation occurs.
47. Electron-withdrawing substituents increase acidity of carboxylic acids by:
Explanation: The -I effect disperses negative charge better.
48. Acetic acid on treatment with PCl$_5$ forms:
Explanation: PCl$_5$ replaces OH with Cl.
49. A carbonyl chapter shortcut is to decide whether the reaction is nucleophilic addition, oxidation-reduction, or:
Explanation: That classification organizes most NEET carbonyl questions.
50. The most scoring areas in this chapter are named tests, acidity logic, and:
Explanation: Recognizing the carbonyl transformation is central.
51. Aldehydes contain the functional group:
Explanation: Aldehydes have the terminal carbonyl group -CHO.
52. Ketones contain the functional group:
Explanation: Ketones have a carbonyl carbon bonded to two carbon groups.
53. Carboxylic acids contain:
Explanation: The carboxyl group combines carbonyl and hydroxyl.
54. Aldehydes are generally more reactive than ketones toward nucleophilic addition because they have:
Explanation: Aldehydes are both less hindered and less electron-donating.
55. Tollens reagent gives a silver mirror with:
Explanation: Aldehydes reduce Tollens reagent to metallic silver.
56. Fehling solution is reduced readily by:
Explanation: Aliphatic aldehydes reduce Fehling solution to Cu$_2$O.
57. Aldehydes on oxidation generally form:
Explanation: The carbonyl carbon is further oxidized.
58. Aldehydes on reduction generally form:
Explanation: Hydrogen adds across the carbonyl group.
59. Ketones on reduction generally form:
Explanation: Reduction converts >C=O to -CHOH-.
60. Carboxylic acids are more acidic than alcohols because:
Explanation: Charge delocalization stabilizes the conjugate base.
61. Iodoform test is given by compounds containing:
Explanation: This includes methyl ketones and alcohols oxidizable to them.
62. Acetaldehyde can be prepared from ethanol by:
Explanation: Primary alcohol gives aldehyde under controlled oxidation.
63. Benzoic acid can be obtained by oxidation of:
Explanation: Strong oxidation converts the side chain to -COOH.
64. Aldol condensation requires compounds having:
Explanation: The enolate formation needs an alpha hydrogen.
65. Cannizzaro reaction is shown by aldehydes lacking:
Explanation: Non-enolizable aldehydes undergo disproportionation.
66. Carboxylic acids react with alcohols in presence of acid to form:
Explanation: This is esterification.
67. Acid chlorides are generally more reactive than carboxylic acids because:
Explanation: Acyl substitution becomes easier with better leaving groups.
68. Lower carboxylic acids are soluble in water mainly because of:
Explanation: They form strong hydrogen bonds with water.
69. Which reagent distinguishes aldehyde and ketone best in routine NEET questions?
Explanation: Aldehydes reduce it while ketones usually do not.
70. The carbonyl carbon is generally:
Explanation: Carbonyl carbon has trigonal planar geometry.
71. HCN adds to carbonyl compounds to form:
Explanation: Nucleophilic addition of CN$^-$ followed by protonation occurs.
72. Electron-withdrawing substituents increase acidity of carboxylic acids by:
Explanation: The -I effect disperses negative charge better.
73. Acetic acid on treatment with PCl$_5$ forms:
Explanation: PCl$_5$ replaces OH with Cl.
74. A carbonyl chapter shortcut is to decide whether the reaction is nucleophilic addition, oxidation-reduction, or:
Explanation: That classification organizes most NEET carbonyl questions.
75. The most scoring areas in this chapter are named tests, acidity logic, and:
Explanation: Recognizing the carbonyl transformation is central.
76. Aldehydes contain the functional group:
Explanation: Aldehydes have the terminal carbonyl group -CHO.
77. Ketones contain the functional group:
Explanation: Ketones have a carbonyl carbon bonded to two carbon groups.
78. Carboxylic acids contain:
Explanation: The carboxyl group combines carbonyl and hydroxyl.
79. Aldehydes are generally more reactive than ketones toward nucleophilic addition because they have:
Explanation: Aldehydes are both less hindered and less electron-donating.
80. Tollens reagent gives a silver mirror with:
Explanation: Aldehydes reduce Tollens reagent to metallic silver.
81. Fehling solution is reduced readily by:
Explanation: Aliphatic aldehydes reduce Fehling solution to Cu$_2$O.
82. Aldehydes on oxidation generally form:
Explanation: The carbonyl carbon is further oxidized.
83. Aldehydes on reduction generally form:
Explanation: Hydrogen adds across the carbonyl group.
84. Ketones on reduction generally form:
Explanation: Reduction converts >C=O to -CHOH-.
85. Carboxylic acids are more acidic than alcohols because:
Explanation: Charge delocalization stabilizes the conjugate base.
86. Iodoform test is given by compounds containing:
Explanation: This includes methyl ketones and alcohols oxidizable to them.
87. Acetaldehyde can be prepared from ethanol by:
Explanation: Primary alcohol gives aldehyde under controlled oxidation.
88. Benzoic acid can be obtained by oxidation of:
Explanation: Strong oxidation converts the side chain to -COOH.
89. Aldol condensation requires compounds having:
Explanation: The enolate formation needs an alpha hydrogen.
90. Cannizzaro reaction is shown by aldehydes lacking:
Explanation: Non-enolizable aldehydes undergo disproportionation.
91. Carboxylic acids react with alcohols in presence of acid to form:
Explanation: This is esterification.
92. Acid chlorides are generally more reactive than carboxylic acids because:
Explanation: Acyl substitution becomes easier with better leaving groups.
93. Lower carboxylic acids are soluble in water mainly because of:
Explanation: They form strong hydrogen bonds with water.
94. Which reagent distinguishes aldehyde and ketone best in routine NEET questions?
Explanation: Aldehydes reduce it while ketones usually do not.
95. The carbonyl carbon is generally:
Explanation: Carbonyl carbon has trigonal planar geometry.
96. HCN adds to carbonyl compounds to form:
Explanation: Nucleophilic addition of CN$^-$ followed by protonation occurs.
97. Electron-withdrawing substituents increase acidity of carboxylic acids by:
Explanation: The -I effect disperses negative charge better.
98. Acetic acid on treatment with PCl$_5$ forms:
Explanation: PCl$_5$ replaces OH with Cl.
99. A carbonyl chapter shortcut is to decide whether the reaction is nucleophilic addition, oxidation-reduction, or:
Explanation: That classification organizes most NEET carbonyl questions.
100. The most scoring areas in this chapter are named tests, acidity logic, and:
Explanation: Recognizing the carbonyl transformation is central.
101. Aldehydes contain the functional group:
Explanation: Aldehydes have the terminal carbonyl group -CHO.
102. Ketones contain the functional group:
Explanation: Ketones have a carbonyl carbon bonded to two carbon groups.
103. Carboxylic acids contain:
Explanation: The carboxyl group combines carbonyl and hydroxyl.
104. Aldehydes are generally more reactive than ketones toward nucleophilic addition because they have:
Explanation: Aldehydes are both less hindered and less electron-donating.
105. Tollens reagent gives a silver mirror with:
Explanation: Aldehydes reduce Tollens reagent to metallic silver.
106. Fehling solution is reduced readily by:
Explanation: Aliphatic aldehydes reduce Fehling solution to Cu$_2$O.
107. Aldehydes on oxidation generally form:
Explanation: The carbonyl carbon is further oxidized.
108. Aldehydes on reduction generally form:
Explanation: Hydrogen adds across the carbonyl group.
109. Ketones on reduction generally form:
Explanation: Reduction converts >C=O to -CHOH-.
110. Carboxylic acids are more acidic than alcohols because:
Explanation: Charge delocalization stabilizes the conjugate base.
111. Iodoform test is given by compounds containing:
Explanation: This includes methyl ketones and alcohols oxidizable to them.
112. Acetaldehyde can be prepared from ethanol by:
Explanation: Primary alcohol gives aldehyde under controlled oxidation.
113. Benzoic acid can be obtained by oxidation of:
Explanation: Strong oxidation converts the side chain to -COOH.
114. Aldol condensation requires compounds having:
Explanation: The enolate formation needs an alpha hydrogen.
115. Cannizzaro reaction is shown by aldehydes lacking:
Explanation: Non-enolizable aldehydes undergo disproportionation.
116. Carboxylic acids react with alcohols in presence of acid to form:
Explanation: This is esterification.
117. Acid chlorides are generally more reactive than carboxylic acids because:
Explanation: Acyl substitution becomes easier with better leaving groups.
118. Lower carboxylic acids are soluble in water mainly because of:
Explanation: They form strong hydrogen bonds with water.
119. Which reagent distinguishes aldehyde and ketone best in routine NEET questions?
Explanation: Aldehydes reduce it while ketones usually do not.
120. The carbonyl carbon is generally:
Explanation: Carbonyl carbon has trigonal planar geometry.
121. HCN adds to carbonyl compounds to form:
Explanation: Nucleophilic addition of CN$^-$ followed by protonation occurs.
122. Electron-withdrawing substituents increase acidity of carboxylic acids by:
Explanation: The -I effect disperses negative charge better.
123. Acetic acid on treatment with PCl$_5$ forms:
Explanation: PCl$_5$ replaces OH with Cl.
124. A carbonyl chapter shortcut is to decide whether the reaction is nucleophilic addition, oxidation-reduction, or:
Explanation: That classification organizes most NEET carbonyl questions.
125. The most scoring areas in this chapter are named tests, acidity logic, and:
Explanation: Recognizing the carbonyl transformation is central.