Arrange their stabilities of given gem- diols in decreasing order.

(a) I > II > III

(b) III > II > I

(c) I > III > II

(d) III > I > II 

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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 HNO3/H2SO4 (A)                  +               (B)

                               (more volatile)                     (less volatile)

Product (A) of the above reaction is:

 

Concept Questions :-

Phenols: Preparation, Properties, Acidic Nature of Phenol
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What is the product obtained by heating the following allylic ether of phenol?

Concept Questions :-

Phenols: Preparation, Properties, Acidic Nature of Phenol
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; Compounds (X) and (Y) can be differentiated by:
(a) H3O, NaOI
(b) H3O, then Fehling test
(c) H3O, then Na
(d) Both (b) and (c)

Concept Questions :-

Ethers: Preparation, Physical & Chemical Properties, Uses
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Which of the following compounds give positive Tollen's Test?

       
                      
      (a)                           (b)                           (c)                            (d)

                                       


Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Test to differentiate between (CH3OH) and (Ph-OH) is/are:

(a) Litmus test

(b) FeCl3

(c) Br2/H2O

(d) All of these

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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In the reaction  + CH3OH CH3ONaProduct.

The product is:

(a) 

(b) 

(c) 

(d) 

Concept Questions :-

Ethers: Preparation, Physical & Chemical Properties, Uses
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Methanol and ethanol can be distinguished by the following:

(a) by reaction with metallic sodium

(b) by reaction with caustic soda

(c) by heating with iodine and washing soda

(d) by heating with zinc and inorganic mineral acid

Concept Questions :-

Mechanism of Dehydration, Uses, Methanol and Ethanol
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Which of the following methods cannot be used for the preparation of an ester?

(a) RCOOH+ R'OH+OH-
(b) RCOCl+R'OH+Pyridine
(c) RCOOH+R’OH+H+
(d) (RCO)2O+R'OH+Pyridine

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Methylated spirit is:

(a) methanol containing some pyridine

(b) ethanol containing some methanol

(c) pure methanol

(d) 95% methanol

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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