Alcohols, Phenols and Ethers

In the following reaction [figure] The major product is

1. [figure]
2. [figure]
3. [figure]
4. [figure]

In the following reactions, (i) CH3- CH3 |CH- OH |CH-CH3 H+/heat (Major product)A + (Minor product)B (ii) A [in absence of peroxide]HBr, dark (Major product)C + (Minor product)D the major products (A) and (C) are respectively

1. CH2= CH3 |C-CH2-CH3 and Br |CH2- CH3 |CH-CH2-CH3
2. CH3- CH3 |C=CH-CH3 and CH3- Br | CH3 |C-CH2-CH3
3. CH2= CH3 |C-CH2-CH3 and CH3- Br | CH3 |C-CH2-CH3
4. CH3- CH3 |C=CH-CH3 and CH3- CH3 |CH- Br |CH-CH3

When glycerol is treated with excess of HI, it produces

1. 2-iodopropane
2. allyl iodide
3. propene
4. glycerol triiodide

Given are cyclohexanol (I), acetic acid (II), 2, 4, 6-trinitrophenol (III) and phenol (IV). In these the order of decreasing acidic character will be

1. III > II > IV > I
2. II > III > I > IV
3. II > III > IV > I
4. III > IV > II > I

Among the following four compounds (i) Phenol (ii) Methyl phenol (iii) Meta-nitrophenol (iv) Para-nitrophenol The acidity order is

1. (iv) > (iii) > (i) > (ii)
2. (iii) > (iv) > (i) > (ii)
3. (i) > (iv) > (iii) > (ii)
4. (ii) > (i) > (iii) > (iv)

Which of the following compounds has the most acidic nature?

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Consider the following reaction : Phenol Zn dust X [Anhyd. AlCl3]CH3Cl Y Alkaline KMnO4 Z the product Z is

1. benzaldehyde
2. benzoic acid
3. benzene
4. toluene

HOCH2CH2OH on heating with periodic acid gives

1. 2HCOOH
2. [figure]
3. [figure]
4. 2CO2

Consider the following reaction : Ethanol PBr3 X alc. KOH Y [(ii) H2O, heat](i) H2SO4, room temperature Z the product Z is

1. CH3CH2-O-CH2-CH3
2. CH3-CH2-O-SO3H
3. CH3CH2OH
4. CH2=CH2

In the reaction : CH3- CH3 |CH-CH2-O-CH2-CH3 + HI heated Which of the following compounds will be formed?

1. CH3- CH3 |CH-CH3 + CH3CH2OH
2. CH3- CH3 |CH-CH2OH + CH3CH3
3. CH3- CH3 |CH-CH2OH + CH3CH2I
4. CH3- CH3 |CH-CH2-I + CH3CH2OH

Ethylene oxide when treated with Grignard reagent yields

1. primary alcohol
2. secondary alcohol
3. tertiary alcohol
4. cyclopropyl alcohol

The major organic product in the reaction is CH3-O-CH(CH3)2 + HI products

1. CH3I + (CH3)2CHOH
2. CH3OH + (CH3)2CHI
3. ICH2OCH(CH3)2
4. CH3O I |C(CH3)2

Which one of the following compounds is most acidic?

1. Cl-CH2-CH2-OH
2. [figure]
3. [figure]
4. [figure]

The -OH group of an alcohol or the -COOH group of a carboxylic acid can be replaced by -Cl using

1. phosphorus pentachloride
2. hypochlorous acid
3. chlorine
4. hydrochloric acid

Which one of the following will not form a yellow precipitate on heating with an alkaline solution of iodine?

1. CH3CH(OH)CH3
2. CH3CH2CH(OH)CH3
3. CH3OH
4. CH3CH2OH

Which one of the following can be oxidised to the corresponding carbonyl compound?

1. 2-Hydroxypropane
2. ortho-Nitrophenol
3. Phenol
4. 2-Methyl-2-hydroxypropane

In a set of the given reactions, acetic acid yielded a product C. CH3COOH + PCl5 A [Anh. AlCl3]C6H6 B [ether]C2H5MgBr C Product C would be

1. CH3CH(OH)C2H5
2. CH3COC6H5
3. CH3CH(OH)C6H5
4. CH3- C2H5 |C(OH)C6H5

n-Propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent?

1. PCl5
2. reduction
3. oxidation with potassium dichromate
4. ozonolysis

When phenol is treated with CHCl3 and NaOH, the product formed is

1. benzaldehyde
2. salicylaldehyde
3. salicylic acid
4. benzoic acid

In preparation of alkene from alcohol using Al2O3 which is the effective factor ?

1. Porosity of Al2O3
2. Temperature
3. Concentration
4. Surface area of Al2O3

Which of the following is correct?

1. On reduction, any aldehyde gives secondary alcohol.
2. Reaction of vegetable oil with H2SO4 gives glycerine
3. Alcoholic iodine with NaOH gives iodoform.
4. Sucrose on reaction with NaCl gives invert sugar.

Which reagent converts propene to 1-propanol ?

1. H2O, H2SO4
2. B2H6, H2O2, OH-
3. Hg(OAc)2, NaBH4/H2O
4. Aq. KOH