Alcohols, Phenols and Ethers

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