Class 12 Chemistry Ch-11 Alcohols, Phenols and Ethers MCQs Exam 2027

Topic 1: Alcohols – Classification, Nomenclature & Structure

1. The functional group of alcohol is: (BSEB, 2019 A, 2020 A, 2022 A)

   (A) $-COOH$

   (B) $-CHO$

   (C) $>C=O$

   (D) $-OH$

2. General group of alcohols is: (BSEB, 2025 A)

   (A) $-C-OH$

   (B) $>CH-OH$

   (C) $-CH_2OH$

   (D) All of these

3. The group present in primary alcohol ($1^\circ$) is: (BSEB, 2021 A)

   (A) $-CH_2OH$

   (B) $>CHOH$

   (C) $>C-OH$

   (D) None of these

4. The group present in secondary alcohol ($2^\circ$) is: (BSEB, 2021 A)

   (A) $>C-OH$

   (B) $-CH_2OH$

   (C) $>CHOH$

   (D) All of these

5. Butan-2-ol is a: (BSEB, 2023 A, 2024 A)

   (A) Primary alcohol

   (B) Secondary alcohol

   (C) Tertiary alcohol

   (D) Dihydric alcohol

6. Glycerol is a: (BSEB, 2017, 2021 A)

   (A) Monohydric alcohol

   (B) Dihydric alcohol

   (C) Trihydric alcohol

   (D) Primary alcohol

7. The general formula of Glycerol is: (BSEB, 2019, 2020 A)

   (A) $CH_2OH-CHOH-CH_2OH$

   (B) $CHO-CHOH-CH_2OH$

   (C) $CH_2OH-CO-CH_2OH$

   (D) $CH_2OH-CH_2OH$

8. General formula of monohydric alcohol is: (BSEB, 2021 A)

   (A) $C_nH_{2n+1}OH$

   (B) $C_nH_{2n+2}OH$

   (C) $C_nH_{2n}OH$

   (D) $C_nH_{2n-1}OH$

9. General formula of Alkanol is: (BSEB, 2017, 2020)

   (A) $C_nH_{2n+2}O$

   (B) $C_nH_{2n}O_2$

   (C) $C_nH_{2n}O$

   (D) $C_nH_{2n+1}O$

10. The hybridization of carbon atom in the functional group of alcohol is: (BSEB, 2023 A)

    (A) $sp^3$

    (B) $sp^2$

    (C) $sp$

    (D) $dsp^2$

11. IUPAC name of ethyl alcohol is: (BSEB, 2015 A)

    (A) Ethanol

    (B) Methanol

    (C) Ethane

    (D) Ethyne

12. IUPAC name of methyl alcohol is: (BSEB, 2016 C)

    (A) Methanol

    (B) Methane

    (C) Methanal

    (D) Ethanol

13. IUPAC name of Glycerol is: (BSEB, 2017 A)

    (A) Propane-1,2,3-triol

    (B) Propane-1,2-diol

    (C) Propane-1-ol

    (D) None of these

14. Structural formula of Propan-2-ol is: (BSEB, 2019)

    (A) $CH_3-CH(OH)-CH_3$

    (B) $CH_3-CH_2-CH_2OH$

    (C) $CH_2(OH)-CH(OH)-CH_2OH$

    (D) $HOCH_2-CH_2-CH_2OH$

15. IUPAC name of $(CH_3)_2CH-CH_2-CH_2OH$ is: (BSEB, 2024 A)

    (A) 2-methyl-1-propanol

    (B) Isobutyl alcohol

    (C) 2-methyl-1-butanol

    (D) None of these

16. Which of the following is a tertiary alcohol? (BSEB, 2024 A)

    (A) $CH_3CH_2OH$

    (B) $(CH_3)_3COH$

    (C) $CH_2OH-CH_2OH$

    (D) $CH_3-CH(OH)-CH_2CH_3$

17. How many isomeric alcohols are possible for $C_4H_{10}O$? (BSEB, 2025 A)

    (A) 2

    (B) 4

    (C) 7

    (D) 8

18. Hybridization on oxygen atom in alcohol is: (BSEB, 2022 A)

    (A) $sp^3$

    (B) $sp^2$

    (C) $sp$

    (D) $dsp^2$

19. The correct order of dehydration of alcohol is: (BSEB, 2022 A)

    (A) $1^\circ > 2^\circ > 3^\circ$

    (B) $3^\circ > 2^\circ > 1^\circ$

    (C) $2^\circ > 3^\circ > 1^\circ$

    (D) None of these

20. When alcohol and ether have the same molecular formula $C_nH_{2n+2}O$, they are called: (BSEB, 2023 A)

    (A) Functional Isomers

    (B) Position Isomers

    (C) Chain Isomers

    (D) None of these

Topic 2: Preparation of Alcohols

21. The process of making ethanol from sugar (by yeast) is called: (BSEB, 2021 A)

    (A) Hydrogenation

    (B) Fermentation

    (C) Oxidation

    (D) Hydrolysis

22. Hydration of ethene gives: (BSEB, 2019 A)

    (A) Ethyl alcohol

    (B) Methyl alcohol

    (C) Ethane

    (D) Ethyne

23. Catalytic hydrogenation of acetaldehyde gives: (BSEB, 2024 A)

    (A) Methanol

    (B) Ethanol

    (C) Propanol

    (D) Ethane

24. Reaction of formaldehyde with Grignard reagent gives: (BSEB, 2020 A)

    (A) Primary alcohol

    (B) Secondary alcohol

    (C) Tertiary alcohol

    (D) Methyl alcohol

25. Reaction of acetone with Grignard reagent gives: (BSEB, 2020 A, 2021 A)

    (A) Primary alcohol

    (B) Secondary alcohol

    (C) Tertiary alcohol

    (D) Aldehyde

26. Acetaldehyde reacts with Grignard reagent to form: (BSEB, 2021 A)

    (A) Primary alcohol

    (B) Secondary alcohol

    (C) Tertiary alcohol

    (D) None of these

27. Methyl alcohol is prepared on a large scale by: (BSEB, 2022 A)

    (A) Pyroligneous acid

    (B) Fermentation of molasses

    (C) $CH_3Cl + Ag_2O$

    (D) $CH_3NH_2 + HNO_2$

28. Methyl alcohol can be prepared from water gas: (BSEB, 2022 A)

    (A) True

    (B) False

    (C) Partially true

    (D) None of these

29. In the formation of alcohol, one hydrogen of alkane is replaced by which group? (BSEB, 2019 A, 2021 A)

    (A) Hydroxyl group

    (B) Aldehyde group

    (C) Carboxyl group

    (D) Chloro group

30. Ethyl alcohol is manufactured by which method? (BSEB, 2016 A)

    (A) Fermentation

    (B) Oxidation

    (C) Reduction

    (D) None of these

Topic 3: Physical and Chemical Properties of Alcohols

31. Ethanol is soluble in water because it forms: (BSEB, 2019)

    (A) Ionic bond

    (B) Covalent bond

    (C) Hydrogen bond

    (D) All of these

32. Which of the following has the highest boiling point? (BSEB, 2023 A)

    (A) Ethanol

    (B) Diethyl ether

    (C) Ethane

    (D) Chloroethane

33. The order of reactivity of alcohols with sodium metal is: (BSEB, 2020)

    (A) $1^\circ > 2^\circ > 3^\circ$

    (B) $3^\circ > 2^\circ > 1^\circ$

    (C) $2^\circ > 3^\circ > 1^\circ$

    (D) None of these

34. The nature of methanol is most acidic among: (BSEB, 2021 A)

    (A) $CH_3OH$

    (B) $CH_3CH_2OH$

    (C) $(CH_3)_2CHOH$

    (D) $(CH_3)_3COH$

35. Heating ethanol with concentrated $H_2SO_4$ at $170^\circ C$ forms: (BSEB, 2019, 2022 A)

    (A) Ethane

    (B) Ethene

    (C) Diethyl ether

    (D) Ethyl hydrogen sulfate

36. Heating ethanol with concentrated $H_2SO_4$ at $140^\circ C$ (413 K) gives: (BSEB, 2013 A, 2015 A)

    (A) Ethene

    (B) Diethyl ether

    (C) Ethyl hydrogen sulfate

    (D) Ethane

37. Dehydration of Butan-2-ol with concentrated $H_2SO_4$ gives: (BSEB, 2011 A)

    (A) 2-methyl propene

    (B) 1-butene

    (C) 2-butene

    (D) Propene

38. The final product of oxidation of primary alcohol (in presence of strong oxidant) is: (BSEB, 2022 A)

    (A) Ketone

    (B) Ester

    (C) Carboxylic acid

    (D) Aldehyde

39. Oxidation of secondary alcohol gives: (BSEB, 2020 A)

    (A) Ketone

    (B) Aldehyde

    (C) Carboxylic acid

    (D) Ester

40. Acidic $K_2Cr_2O_7$ oxidizes methanol to: (BSEB, 2025 A)

    (A) Acetone

    (B) Acetaldehyde

    (C) Formic acid ($HCOOH$)

    (D) Acetic acid

41. Which does not give Victor Meyer test: (BSEB, 2023 A)

    (A) $CH_3CH_2OH$

    (B) $(CH_3)_2CHOH$

    (C) $(CH_3)_3COH$

    (D) $CH_3OH$

42. Lucas Reagent is a mixture of: (BSEB, 2022 A)

    (A) Conc. $HCl$ + Anhydrous $ZnCl_2$

    (B) Conc. $HNO_3$ + Anhydrous $ZnCl_2$

    (C) Conc. $HCl$ + Hydrated $ZnCl_2$

    (D) Conc. $H_2SO_4$ + Anhydrous $ZnCl_2$

43. Reacts fastest with Lucas reagent: (BSEB, 2020 A)

    (A) 1-butanol

    (B) 2-butanol

    (C) 2-methyl-2-propanol

    (D) 2-methyl-1-propanol

44. $1^\circ, 2^\circ$ and $3^\circ$ alcohols are distinguished by: (BSEB, 2017 A, 2021 A)

    (A) Oxidation method

    (B) Lucas reagent test

    (C) Victor Meyer test

    (D) All of the above

45. Ethyl alcohol reacts with bleaching powder to form: (BSEB, 2018 A)

    (A) $CH_3CHO$

    (B) $C_2H_5Cl$

    (C) $CHCl_3$ (Chloroform)

    (D) $CH_3Cl$

46. Which alcohol does not give Iodoform test? (BSEB, 2023 A)

    (A) Isopropyl alcohol

    (B) Ethanol

    (C) Benzyl alcohol

    (D) Acetone

47. When vapours of alcohol are passed over hot copper (Cu), it gives alkene. That alcohol is: (BSEB, 2026)

    (A) Primary

    (B) Secondary

    (C) Tertiary

    (D) None of these

48. Catalyst for dehydration of primary alcohol is: (BSEB, 2022 A)

    (A) Ketone

    (B) Ester

    (C) Secondary alcohol

    (D) Aldehyde (Note: Should be acid catalyst)

49. In $R-OH + CH_2N_2 \rightarrow R-OCH_3 + N_2$, the leaving group is: (BSEB, 2018)

    (A) $CH_3$

    (B) $R$

    (C) $N_2$

    (D) $CH_2$

50. What does methyl magnesium iodide give with water? (BSEB, 2021 A)

    (A) Methane

    (B) Ethane

    (C) Methanol

    (D) Ethanol

51. Reduction of aldehyde gives: (BSEB, 2019 A)

    (A) $1^\circ$ alcohol

    (B) $2^\circ$ alcohol

    (C) $3^\circ$ alcohol

    (D) Ketone

52. Reduction of ketone gives: (BSEB, 2021 A)

    (A) $2^\circ$ alcohol

    (B) $1^\circ$ alcohol

    (C) $3^\circ$ alcohol

    (D) Alkane

53. Percentage of ethanol in Rectified Spirit is:

    (A) 95.5%

    (B) 96%

    (C) 98%

    (D) 99.5%

54. Known as ‘Wood Spirit’: (BSEB, 2016 C, 2026)

    (A) Methanol

    (B) Ethanol

    (C) Acetone

    (D) Benzene

55. ‘Grain Alcohol’ is called:

    (A) Methanol

    (B) Ethanol

    (C) Propanol

    (D) Phenol

56. Which alcohol is present in beverages? (BSEB, 2016 A)

    (A) Methanol

    (B) Ethanol

    (C) Isopropyl alcohol

    (D) Butanol

57. Boiling point of alcohol is higher than ether because it has: (BSEB, 2023 A)

    (A) $H$-bond

    (B) Covalent bond

    (C) Ionic bond

    (D) None of these

58. Commercial name of methyl alcohol is: (BSEB, 2022 A)

    (A) Wood alcohol

    (B) Grain alcohol

    (C) Spirit

    (D) Liquor

59. Alcohol on oxidation gives aldehyde, this process is: (BSEB, 2011 A)

    (A) Dehydrogenation

    (B) Hydrogenation

    (C) Hydrolysis

    (D) None of these

60. Alcohol contains: (BSEB, 2020 A)

    (A) $-OH$ group

    (B) $-CHO$ group

    (C) $-COOH$ group

    (D) $-NH_2$ group

Topic 4: Phenols – Nomenclature & Preparation

61. Formula of phenol is: (BSEB, 2016 C)

    (A) $C_6H_5OH$

    (B) $C_2H_5OH$

    (C) $C_3H_7OH$

    (D) $C_6H_6$

62. What is the identification of phenol? (BSEB, 2022 A)

    (A) $-OH$ with benzene ring

    (B) Benzene ring

    (C) $-OH$ with cyclohexane ring

    (D) Two $-OH$ with benzene ring

63. Formula of Picric Acid is: (BSEB, 2021 A)

    (A) 2,4,6-trinitrophenol

    (B) 2,4-dinitrophenol

    (C) meta-nitrophenol

    (D) ortho-nitrophenol

64. Picric acid is a: (BSEB, 2019 A)

    (A) Phenol

    (B) Ketone

    (C) Ether

    (D) Aldehyde

65. Boiling benzene diazonium chloride ($C_6H_5N_2^+Cl^-$) with water gives: (BSEB, 2021 A)

    (A) Aniline

    (B) Phenol

    (C) Methyl alcohol

    (D) None of these

66. How many double bonds are in the benzene ring of phenol? (BSEB, 2022 A)

    (A) 1

    (B) 2

    (C) 3

    (D) 4

67. Phenol is prepared from: (BSEB, 2018 A)

    (A) Cumene

    (B) Benzene

    (C) Toluene

    (D) None of these

Topic 5: Chemical Properties & Uses of Phenols

68. The nature of phenol is:

    (A) Basic

    (B) Neutral

    (C) Acidic

    (D) None of these

69. Most acidic among the following is: (BSEB, 2022 A)

    (A) Phenol

    (B) Benzyl alcohol

    (C) $m$-chlorophenol

    (D) Cyclohexanol

70. Heating phenol with zinc (Zn) dust forms: (BSEB, 2016, 2021 A)

    (A) Benzene

    (B) Toluene

    (C) Phenoxide

    (D) Benzaldehyde

71. Heating phenol with concentrated nitric acid gives:

    (A) Nitrobenzene

    (B) Picric acid

    (C) Ortho-nitrophenol

    (D) None of these

72. Heating phenol with chloroform ($CHCl_3$) and aqueous $NaOH$ gives: (BSEB, 2015 A)

    (A) Benzaldehyde

    (B) Salicylaldehyde

    (C) Salicylic acid

    (D) Benzoic acid

73. The reaction that converts phenol to salicylaldehyde is: (BSEB, 2021 A)

    (A) Etard reaction

    (B) Kolbe reaction

    (C) Reimer-Tiemann reaction

    (D) Cannizzaro reaction

74. Reaction of phenol and methanal (formaldehyde) gives: (BSEB, 2021 A)

    (A) Bakelite

    (B) Nylon

    (C) Polythene

    (D) PVC

75. Used in the manufacture of Bakelite: (BSEB, 2021 A)

    (A) Acetaldehyde

    (B) Acetone

    (C) Formaldehyde

    (D) Chlorobenzene

76. What color does phenol give with aqueous $FeCl_3$ solution? (BSEB, 2022 A, 2026)

    (A) Red

    (B) Green

    (C) Violet/Purple

    (D) Blue

77. What precipitate does phenol give with Bromine Water? (BSEB, 2019 A)

    (A) White

    (B) Red

    (C) Yellow

    (D) Black

78. Which group is not present in Aspirin?

    (A) Picric acid

    (B) Phenolic group

    (C) Quinol

    (D) Resorcinol

79. Phenol is a: (BSEB, 2018 A)

    (A) Disinfectant

    (B) Antiseptic

    (C) Analgesic

    (D) Antipyretic

80. Pyrogallol is used in: (BSEB, 2022 A)

    (A) Absorption of oxygen

    (B) Absorption of $CO_2$

    (C) Absorption of nitrogen

    (D) Absorption of hydrogen

81. Lucas reagent does not react with: (BSEB, 2021 A)

    (A) $n$-butyl alcohol

    (B) $sec$-butyl alcohol

    (C) $tert$-butyl alcohol

    (D) Phenol

82. Acidic strength of phenol as compared to ethyl alcohol is: (BSEB, 2014 A)

    (A) Less

    (B) More

    (C) Equal

    (D) None of these

Topic 6: Ethers – Nomenclature & Preparation

83. Functional group of ether is: (BSEB, 2020 A, 2023 A)

    (A) $-O-$

    (B) $-CHO$

    (C) $-COOH$

    (D) $-OH$

84. General formula of ether is: (BSEB, 2026)

    (A) $C_nH_{2n}O$

    (B) $C_nH_{2n+1}O$

    (C) $C_nH_{2n+2}O$

    (D) $C_nH_{2n}O_2$

85. Represents Mixed Ether:

    (A) $R-O-R$

    (B) $R-O-R’$

    (C) $R’-O-R’$

    (D) None of these

86. Formula of ethoxy ethane is: (BSEB, 2021 A)

    (A) $C_2H_5OCH_3$

    (B) $CH_3OCH_3$

    (C) $C_2H_5OC_2H_5$

    (D) None of these

87. Formula of methoxy methane is: (BSEB, 2020 A)

    (A) $CH_3OCH_3$

    (B) $CH_3COCH_3$

    (C) $C_2H_5OCH_3$

    (D) $C_2H_5COCH_3$

88. IUPAC name of $CH_3OC_2H_5$ is: (BSEB, 2016 C)

    (A) Methoxy methane

    (B) Ethoxy ethane

    (C) Methoxy ethane

    (D) None of these

89. Heating alkyl halide with dry $Ag_2O$ gives: (BSEB, 2024 A)

    (A) Ester

    (B) Ether

    (C) Ketone

    (D) Alcohol

90. Reaction of sodium ethoxide and ethyl iodide forms: (BSEB, 2013 A)

    (A) Diethyl ether

    (B) Ethyl methyl ether

    (C) Ethyl ethanoate

    (D) None of these

91. Williamson synthesis is used for the manufacture of: (BSEB, 2017 A)

    (A) Alcohol

    (B) Ether

    (C) Ketone

    (D) Aldehyde

92. Diethyl ether is an isomer of: (BSEB, 2017 A)

    (A) Methyl alcohol

    (B) Ethyl alcohol

    (C) Acetone

    (D) Butanol

93. Which is an isomer of ethyl alcohol? (BSEB, 2017 A)

    (A) Dimethyl ether

    (B) Diethyl ether

    (C) Acetone

    (D) Methanol

Topic 7: Physical and Chemical Properties of Ethers

94. The nature of ether is:

    (A) Neutral

    (B) Basic

    (C) Acidic

    (D) Amphoteric

95. Which of the following is most volatile? (BSEB, 2022 A)

    (A) $CH_3CH_2CH_2OH$

    (B) $CH_3CH(OH)CH_3$

    (C) $CH_3-O-CH_2CH_3$

    (D) $CH_3CH_2OH$

96. Boiling point of ether is less than alcohol because in ether: (BSEB, 2023 A)

    (A) $H$-bond is absent

    (B) $H$-bond is present

    (C) Covalent bond exists

    (D) Ionic bond exists

97. Diethyl ether is used in medicine as:

    (A) Painkiller

    (B) Sleep inducer

    (C) Antiseptic

    (D) Anesthetic

98. The oxygen atom in ether is: (BSEB, 2023 A)

    (A) Very reactive

    (B) Replaceable

    (C) Comparatively inert

    (D) Active

99. Diethyl ether is used as: (BSEB, 2022 A)

    (A) Solvent

    (B) Refrigerant

    (C) Fuel

    (D) Pesticide

100. Which compound is insoluble in water? (BSEB, 2021 A)

     (A) $CHCl_3$

     (B) $C_2H_5-O-C_2H_5$

     (C) $CCl_4$

     (D) $CH_3CH_2OH$

Topic 8: Miscellaneous Important Questions

101. Which acid is present in Vinegar? (BSEB, 2017 A)

     (A) $HCOOH$

     (B) $CH_3COOH$

     (C) $C_2H_5COOH$

     (D) None of these

102. Which gas is released during fermentation? (BSEB, 2021 A)

     (A) $O_2$

     (B) $CO_2$

     (C) $N_2$

     (D) $SO_2$

103. Formalin is: (BSEB, 2018 A)

     (A) 40% aqueous solution of formaldehyde

     (B) Aqueous solution of acetaldehyde

     (C) Aqueous solution of formic acid

     (D) Aqueous solution of methanol

104. Radon is a: (BSEB, 2021 A)

     (A) Metal

     (B) Non-metal

     (C) Metalloid

     (D) Inert gas

105. Passing acetylene through $HgSO_4$ and $H_2SO_4$ gives: (BSEB, 2022 A)

     (A) Ethyl alcohol

     (B) Acetone

     (C) Acetaldehyde

     (D) None of these

106. Is chloroform ($CHCl_3$) soluble in water? (BSEB, 2021 A)

     (A) Yes

     (B) No

     (C) Partially

     (D) None of these

107. Functional group of ether is $-O-$: (BSEB, 2023 A)

     (A) True

     (B) False

     (C) Partial

     (D) None of these

108. Water gas and catalyst are used to prepare methanol: (BSEB, 2022 A)

     (A) True

     (B) False

     (C) None of these

109. Primary alcohol on oxidation gives: (BSEB, 2022 A)

     (A) Aldehyde

     (B) Ketone

     (C) Ether

     (D) None of these

110. Glycerol is a trihydric alcohol: (BSEB, 2020 A)

     (A) True

     (B) False

     (C) None of these

111. Reaction of methyl magnesium bromide with aldehyde gives: (BSEB, 2021 A)

     (A) Alcohol

     (B) Ether

     (C) Acid

     (D) None of these

112. Is picric acid a strong acid because of electron-withdrawing groups? (BSEB, 2021 A)

     (A) Yes

     (B) No

     (C) None of these

113. Formula of benzene is: (BSEB, 2021 A)

     (A) $C_6H_6$

     (B) $C_6H_{12}$

     (C) $C_6H_5OH$

     (D) None of these

114. General formula of Alkanol is $C_nH_{2n+2}O$. (BSEB, 2017)

     (A) True

     (B) False

115. Heating ether with concentrated $HI$ gives: (BSEB, 2022 A)

     (A) Alcohol + Alkyl iodide

     (B) Alkane

     (C) Alkene

     (D) None of these

116. Phenol on exposure to air oxidizes to form:

     (A) Quinone

     (B) Benzene

     (C) Toluene

     (D) None of these

117. Molecular weight of Glycerol is:

     (A) 92

     (B) 100

     (C) 80

     (D) 110

118. Boiling point of alcohol increases with:

     (A) Increase in carbon chain

     (B) Increase in branching

     (C) Decrease in pressure

     (D) None of these

119. Ether used as an anesthetic: (BSEB, 2025 A)

     (A) Diethyl ether

     (B) Dimethyl ether

     (C) Methoxy ethane

     (D) None of these

120. Polarity of $O-H$ bond in alcohol is due to:

     (A) High electronegativity of Oxygen

     (B) Electronegativity of Carbon

     (C) Electronegativity of Hydrogen

     (D) None of these

121. Gives immediate turbidity in Lucas test: (BSEB, 2020 A)

     (A) $3^\circ$ alcohol

     (B) $2^\circ$ alcohol

     (C) $1^\circ$ alcohol

     (D) Methanol

122. Used to distinguish between methanol and ethanol:

     (A) Iodoform test

     (B) Lucas test

     (C) Fehling test

     (D) None of these

123. Is the $pK_a$ value of phenol less than alcohol?

     (A) Yes

     (B) No

124. Hydrolysis of alkyl halide with aqueous $KOH$ gives:

     (A) Alcohol

     (B) Ether

     (C) Alkane

     (D) Alkene

125. Is diethyl ether flammable?

     (A) Yes

     (B) No

126. Gem-diols are unstable because:

     (A) Two $-OH$ groups cannot stay on one carbon

     (B) They are too heavy

     (C) They are acidic

     (D) None of these

127. Hydrogenation of phenol (in presence of Ni) gives:

     (A) Cyclohexanol

     (B) Benzene

     (C) Cyclohexane

     (D) None of these

128. The structure of ether is:

     (A) Angular/Bent

     (B) Linear

     (C) Trigonal

     (D) None of these

129. Ethanol and dimethyl ether are:

     (A) Functional isomers

     (B) Chain isomers

     (C) Position isomers

     (D) None of these

130. Is picric acid obtained by nitration of phenol? (BSEB, 2020 A)

     (A) Yes

     (B) No

131. In alcohol, $R$ group is:

     (A) Electron Donor

     (B) Electron Acceptor

     (C) Neutral

     (D) None of these

132. Formula of Salicylic acid is:

     (A) 2-hydroxybenzoic acid

     (B) 2-hydroxybenzaldehyde

     (C) 3-hydroxybenzaldehyde

     (D) None of these

133. Is the dipole moment of ether zero?

     (A) No

     (B) Yes

134. Is methanol toxic?

     (A) Yes

     (B) No

135. Phenolphthalein is prepared from:

     (A) Phenol + Phthalic anhydride

     (B) Phenol + Acetone

     (C) Phenol + Benzene

     (D) None of these

136. Is Glycol a dihydric alcohol?

     (A) Yes

     (B) No

137. Explosion does not occur when ether is kept in dark?

     (A) True

     (B) False

138. Is alcohol used as an Antifreeze?

     (A) Yes

     (B) No

139. Is phenol also called Carbolic Acid?

     (A) Yes

     (B) No

140. Molecular weight of ethanol is:

     (A) 46

     (B) 32

     (C) 60

     (D) 18

141. The bond angle ($C-O-C$) in ether is approximately:

     (A) $110^\circ$

     (B) $180^\circ$

     (C) $90^\circ$

     (D) $120^\circ$

142. Which is the acidic hydrogen in alcohol?

     (A) Hydrogen attached to $O$

     (B) Hydrogen attached to $C$

     (C) Hydrogen of $R$ group

     (D) None of these

143. Kolbe’s reaction forms:

     (A) Salicylic acid

     (B) Salicylaldehyde

     (C) Benzene

     (D) Picric acid

144. Can ethers form hydrogen bonds with water?

     (A) Yes

     (B) No

145. What is the main source of ethanol? (BSEB, 2021 A)

     (A) Molasses

     (B) Coal

     (C) Air

     (D) Soil