Alcohols, Phenols and Ethers

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.