The product 'D' in the below mentioned reaction is:
\(CH_3MgBr + \text{cyclopentanone}\ \)
\(\xrightarrow{H_2O}\ A\ \xrightarrow{HBr}\ B\)
\( B\ \xrightarrow{Mg/Ether}\ C \xrightarrow[H_3O^+]{HCHO}\ D\)

1.     2.  
3.    4.   

Subtopic:  Alcohols: Preparation & Properties |
 59%
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Consider the following alcohols,

I.
II.
III.
IV.

Ease of dehydration of the above alcohols will be in the order of-

1. I < II < III < IV 2. I > II > III > IV
3. III  < II < I < IV 4. II < III < IV < I
Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
 64%
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The number of  moles of HI consumed by the given compound is:

1. 1 2. 2
3. 3 4. 4
Subtopic:  Ethers: Preparation & Properties, Uses |
 64%
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The strongest acid among the following aromatic compounds is -

1. p-Chlorophenol 2. p-Nitrophenol
3. m-Nitrophenol 4. o- Nitrophenol
Subtopic:  Phenols: Preparation & Properties |
 77%
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An aromatic compound A (C8H10O) gives the following tests with the given reagents.

The structure of  'A' is:

1.  2.
3. 4.
Subtopic:  Alcohols: Preparation & Properties |
 64%
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Compound Y,  C7H8O is insoluble in water, dil HCI and aqueous NaHCO3. It dissolves in dilute NaOH. When Y is treated with bromine water it is converted rapidly into a compound of formula C7H5OBr3.  The structure of Y is:

1.    2.  
3. 4.
Subtopic:  Phenols: Preparation & Properties |
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Compounds I and II can be distinguished by using reagent:

(I)   4–Amino–2–methlbut–3–en–2–ol  
(II)   4–Amino–2,2–dimethylbut–3–yn–1–ol  


1. NaNO2/HCl

2. Br2/H2O

3. HCl/ZnCl2 (anhydrous)

4. Cu2Cl2 + NH4OH

Subtopic:  Alcohols: Preparation & Properties |
 67%
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The correct order of dehydration of compounds (i), (ii) and (iii) by conc. H2SO4 is:

(i) 
(ii) 
(iii)

1. (i) > (iii) > (ii)                                             

2. (i) > (ii) > (iii)

3. (ii) > (i) > (iii)                                             

4. (ii) > (iii) > (i)

Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
 62%
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Ether cannot be produced as a major product by the reaction of- 

1.  CH3CH2Cl + Ag2O(dry)  →  
 
2.  (CH3)3CCl + CH3CH2O-Na+  →
 
3.  
4. 

Subtopic:  Ethers: Preparation & Properties, Uses |
 62%
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The labeled -O18 will be:


1. H2O

2. Methyl benzoate

3. Both 1 and 2

4. Benzoic acid

Subtopic:  Alcohols: Preparation & Properties |
 70%
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