Alcohols, Phenols and Ethers Important question subtopic wise Part-I

                                   Alcohols, Phenols and Ethers  

S.No.	Chapter Name	Topic-Concept Name	VSA/SA/Long answer question
1	Alcohols, Phenols and Ethers	Classification	VSA-70 SA TYPE-I (2MARKS)-06 SA TYPE-II (3MARKS)-8
		Nomenclature
		Structures Of Functional Groups
		Alcohols And Phenols
		Some Commercially Important Alcohols
		Ethers

 

VERY SHORT ANSWER TYPE QUESTIONS (1 Mark)

 

S.No.	Chapter Name	Topic-Concept Name	VSA (1 Marks)
1	Alcohols, Phenols and Ethers	Alcohols And Phenols	1.     . Ethanol on heating with conc. H2SO4 at 443 K gives- a- diethyl sulphate b- Ethylene c- Diethyl ether d- Ethyl hydrogen sulphate
2	Alcohols, Phenols and Ethers	Alcohols And Phenols	2.     Which of the following is most acidic? a- H2O b- CH3OH c- C2H5OH d- CH3 – CH2 – CH2 – OH
3	Alcohols, Phenols and Ethers	Alcohols And Phenols	3.     where A is a- Phenol b- Sodium phenoxide c- Benzene d- Cyclohexyl chloride
4	Alcohols, Phenols and Ethers	Alcohols And Phenols	4.     The order of acidic strength among i)Phenol ii) p-nitrophenol iii) 2,4 Dinitrophenol following is.. a- (i) = (ii) = (iii) b- (i) < (ii) < (iii) c- (ii) < (iii) = (iv) d- (i) < (iii) < (ii)
5	Alcohols, Phenols and Ethers	Alcohols And Phenols	5.     Phenol can be distinguished from ethyl alcohol by all reagents except- a-NaOH b-FeCl3 c- Br2/ H2O d- Na
6	Alcohols, Phenols and Ethers	Alcohols And Phenols	6.     Which of the following compounds is least acidic? a- o-Nitrophenol b- m-Nitrophenol c- p-Nitrophenol d- Phenol
7	Alcohols, Phenols and Ethers	Alcohols And Phenols	7.     The product obtained from the following sequence of reactions is.. a- Acetaldehyde b- Ethanol c- Glycol d- Acetic Acid
8	Alcohols, Phenols and Ethers	Alcohols And Phenols	8.     Which of the following compounds will be most readily attacked by an electrophile? a- Chlorobenzene b-Benzene c-Phenol d-Toluene
9	Alcohols, Phenols and Ethers	Alcohols And Phenols	9.     The correct order of boiling points for primary (1˚), secondary (2˚) and tertiary alcohol (3˚) is... a- 1˚ > 2˚ > 3˚ b- 3˚ > 2˚ > 1˚ c- 2˚ > 1˚ > 3˚ d- 2˚ > 3˚ > 1˚
10	Alcohols, Phenols and Ethers	Alcohols And Phenols	10.  Which of the following is most acidic? a- Phenol b- Benzyl alcohol c- m- Chlorophenol d- Cyclohexanol
11	Alcohols, Phenols and Ethers	Alcohols And Phenols	11.  The reaction of Lucas reagent is fastest with a- (CH3)3COH b- (CH3)2CHOH c- CH3(CH2)2OH d- CH3CH2OH
12	Alcohols, Phenols and Ethers	Classification	12.  Carbolic acid is... a- Phenol b- Benzene c- Phenyl Acetate d- Salicylic acid
13	Alcohols, Phenols and Ethers	Alcohols And Phenols	13.  Aspirin is an acetylation product of: a. p-dihydroxybezene b. o-hydroxybenzoic acid c. o-dihydroxybenzene d. m-hydroxybenzoic acid
14	Alcohols, Phenols and Ethers	Alcohols And Phenols	14.  Which of the following will give yellow ppt with I2 /NaOH a. CH3CH2COCH2CH3 b. CH3COOCOCH3 c. CH3CONH2 d. CH3CH(OH)CH2CH3
15	Alcohols, Phenols and Ethers	Ethers	15.  2- Methoxy – 2- methyl propane on heating with HI would produce- a- Methyl alcohol and sec-propyl iodide. b- Methyl iodide and tert-butyl alcohol. c- Methyl iodide and isobutene. d- Methyl alcohol and tert- butyl iodide.
16	Alcohols, Phenols and Ethers	Alcohols And Phenols	16.  Which of the following is the most suitable method for removing the traces of water from ethanol? a- Heating with Na metal b- Passing dry HCl gas through it c- Distilling it d- Reacting with Mg
17	Alcohols, Phenols and Ethers	Alcohols And Phenols	17.  When ether is exposed to air for sometimes, and explosive substance produced is- a- Peroxide b- TNT c- Picric acid d- Superoxide
18	Alcohols, Phenols and Ethers	Alcohols And Phenols	18.  When Phenol is treated with CHCl3and NaOH, the product formed is – a- Benzoldehyde b- Salicylaldehyde c- Salicylic acid d- Benzoic acid
19	Alcohols, Phenols and Ethers	Alcohols And Phenols	19.  The most suitable reagent for the conversion of RCH2OH RCHO is a- KMnO4 b- K2Cr2O7 c- CrO3 d- PCC
20	Alcohols, Phenols and Ethers	Nomenclature	20.  IUPAC name of the compound H3CCH(OH)CH2CH(CH3)CH3 is.. a-4-methylpentene – 2- ol b- 2-methylpentanol – 4 c- 4,4- dimethyl- butan – 2- ol d- 4-methyl pentan – 2 – ol
21	Alcohols, Phenols and Ethers	Alcohols And Phenols	21.  The most suitable method of separation of a mixture of ortho and para-nitro-phenols mixed in the ratio of 1:1 is. a- Steam distillation b- Crystallisation c- Vaporization d- Colour Spectrum
22	Alcohols, Phenols and Ethers	Alcohols And Phenols	22.  The Hydroboration-Oxidation process proceeds through _______________ Rule.
23	Alcohols, Phenols and Ethers	Alcohols And Phenols	23.  Alcohols are highly soluble in water due to _______ bonding.
24	Alcohols, Phenols and Ethers	Ethers	24.  The preparation of Ethers by Williamson’s synthesis follows___________ mechanism.
25	Alcohols, Phenols and Ethers	Alcohols And Phenols	25.  Phenoxide ion is more acidic than ethoxide ion due to ______effect.
26	Alcohols, Phenols and Ethers	Alcohols And Phenols	26.  Upon reacting with Grignard’s Reagent; formaldehyde forms _______________ degree alcohol
27	Alcohols, Phenols and Ethers	Nomenclature	27.  In IUPAC nomenclature of Ethers; the larger _________group is chosen as the parent hydrocarbons.
28	Alcohols, Phenols and Ethers	Alcohols And Phenols	28.  Acidic dehydration of alcohols at lower temperatures forms __________ due to SN2 mechanism.
29	Alcohols, Phenols and Ethers	Alcohols And Phenols	29.  Trinitrophenols are more acidic than phenol as it has lower _________ values.
30	Alcohols, Phenols and Ethers	Alcohols And Phenols	30.  In Kolbe’s reaction; Carbon Dioxide works as a weak _____________ agent.
31	Alcohols, Phenols and Ethers	Alcohols And Phenols	31.  Picric acid is more acidic than phenol due to _________ effect.
32	Alcohols, Phenols and Ethers	Alcohols And Phenols	32.  The chemical composition of Lucas Reagent is ____________.
33	Alcohols, Phenols and Ethers	Alcohols And Phenols	33.  Orthonitrophenol (ONP) is _________ volatile due to presence of weak intramolecular Hydrogen Bonding.
34	Alcohols, Phenols and Ethers	Alcohols And Phenols	34.  During preparation of Phenol from Cumene, __________ is formed as an important by-product.
35	Alcohols, Phenols and Ethers	Ethers	35.  Anisole undergoes bromination with bromine in ethanoic acid to form ______________as the major product.
36	Alcohols, Phenols and Ethers	Ethers	36.  In case of reaction with HI, when one of the alkyl groups of the reacting ether is tertiary, then the halide formed is a ______________ degree halide.
37	Alcohols, Phenols and Ethers	Some Commercially Important Alcohols	37.  Two common by-products of fermentation of Cane Sugar are Ethanol and____.
38	Alcohols, Phenols and Ethers	Nomenclature	38.  The IUPAC name of the major product formed on acetylation of Salicylic acid is _________.
39	Alcohols, Phenols and Ethers	Alcohols And Phenols	39.  On Zinc dust distillation of Phenol __________ is formed.
40	Alcohols, Phenols and Ethers	Alcohols And Phenols	40.  The Lewis Acid catalyst used in the Friedel Crafts alkylation of Anisole is ________.
41	Alcohols, Phenols and Ethers	Ethers	41.  Ethers are the least reactive of the functional groups due to ______________ hindrance.
42	Alcohols, Phenols and Ethers	Alcohols And Phenols	42.  The chemical test which can be used to distinguish between Methanol and Ethanol is ________ test.
43	Alcohols, Phenols and Ethers	Alcohols And Phenols	43.  Controlled oxidation of Alcohols gives rise to/ yields__________.
44	Alcohols, Phenols and Ethers	Alcohols And Phenols	44.  On prolonged exposure of Ethanol to atmosphere, it gives vinegar like smell due to _______ process.
45	Alcohols, Phenols and Ethers	Alcohols And Phenols	45.  A better reagent for oxidation of primary allylic alcohols to aldehydes in good yield is ____________.
46	Alcohols, Phenols and Ethers	Alcohols And Phenols	46.  Arrange the following in order of increasing reactivity towards Lucas reagents: Butan-1-ol, 2- methyl propane-2-ol, butan-2-ol
47	Alcohols, Phenols and Ethers	Alcohols And Phenols	47.  Phenol is an acid but does not react with sodium bicarbonate solution.
48	Alcohols, Phenols and Ethers	Alcohols And Phenols	48.  What is the order of dehydration of Primary, secondary and tertiary alcohol?
49	Alcohols, Phenols and Ethers	Some Commercially Important Alcohols	49.  What is denatured alcohol?
50	Alcohols, Phenols and Ethers	Some Commercially Important Alcohols	50.  What is absolute alcohol?
51	Alcohols, Phenols and Ethers	Ethers	51.  An alkoxide is a stronger base than Hydroxide ion. Justify.
52	Alcohols, Phenols and Ethers	Some Commercially Important Alcohols	52.  In the process of wine making, ripened grapes are crushed so that sugar and enzyme should come in contact with each other and formation should start. What will happen if aerobic conditions are not maintained during this process?
53	Alcohols, Phenols and Ethers	Alcohols And Phenols	53.  What is the main product formed when phenol is subjected to Kolbe's reaction?
54	Alcohols, Phenols and Ethers	Alcohols And Phenols	54.  What happens when tertiary t-butyl alcohol is treated with reduced copper at 573 K.
55	Alcohols, Phenols and Ethers	Alcohols And Phenols	55.  What is the major product when butane-2-ol is heated with H2SO4 at 443K?
56	Alcohols, Phenols and Ethers	Nomenclature	56.  What is the IUPAC name of
57	Alcohols, Phenols and Ethers	Classification	57.  What are alcohols?
58	Alcohols, Phenols and Ethers	Nomenclature	58.  Name the alcohol which is used for polishing wooden furniture.
59	Alcohols, Phenols and Ethers	Ethers	59.  Name the pair of alkyl halide and alkoxide for the preparation of ethyl tertiary -butyl ether.
60	Alcohols, Phenols and Ethers	Ethers	60.  Why are ethers relatively inert compounds?
61	Alcohols, Phenols and Ethers	Nomenclature	61.  Write the chemical name of cumene.
62	Alcohols, Phenols and Ethers	Nomenclature	62.  Write the IUPAC name of CH2 = CH - CH2OH
63	Alcohols, Phenols and Ethers	Nomenclature	63.  What is the common name of CH3OC2H5
64	Alcohols, Phenols and Ethers	Nomenclature	64.  What is the IUPAC name of Resorcinol?
65	Alcohols, Phenols and Ethers	Classification	65.  Name the simplest hydroxyl derivative of benzene.
66	Alcohols, Phenols and Ethers	Alcohols And Phenols	66.  Give reason: Lower alcohols are soluble in water.
67	Alcohols, Phenols and Ethers	Nomenclature	67.  Name the compound which is also known as carbolic acid.
68	Alcohols, Phenols and Ethers	Nomenclature	68.  Write the IUPAC name of the following compound:
69	Alcohols, Phenols and Ethers	Nomenclature	69.  Give the IUPAC name of the following compound:
70	Alcohols, Phenols and Ethers	Alcohols And Phenols	70.  The boiling point of alcohols is much higher than ethers and other classes of compounds with similar molecular masses. Give reason.

 

 

SHORT ANSWER-I TYPE QUESTIONS (2 Marks)

 

 

S.No.	Chapter Name	Topic-Concept Name	SA TYPE-I (2 Marks)
71	Alcohols, Phenols and Ethers	Ethers	71.   Explain why sodium metal can be used for drying diethyl Ether but not ethyl alcohol.