When 2-butanol is passed over heated copper at 573 K, it undergoes dehydrogenation to form:

1. 2-Butene                                         

2. Butanone

3. Butyraldehyde                                 

4. 1-Butene

The compound having lowest boiling point among the following is -

1. Phenol                                 

2. o-Nitrophenol

3. m-Nitrophenol                       

4. p-Nitrophenol

Oxidation of 2-propanol by K₂Cr₂O₇ and dilute H₂SO₄ leads to the formation of:

1. Propanal                     

2. Propanoic acid

3. Methanoic acid             

4. Propanone

A compound X with molecular formula C₃H₈O can be oxidised to a compound Y with the molecular formula C₃H₆O₂. X is most likely to be:

1. Primary alcohol                     

2. Secondary alcohol

3. Aldehyde                               

4. Ketone

Why is the ionisation constant of phenol higher than that of ethanol?                

1. Phenoxide ion is bulkier than ethoxide

2. Phenoxide ion is a stronger base than ethoxide

3. Phenoxide ion is stabilised through delocalisation

4. Phenoxide ion is less stable than ethoxide

The Williamson's synthesis reaction among the following is :

1.
2.
3.
4.

Which represents Riemer-Tiemann reaction?

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

An organic compound A reacts with PCl₃ to give B. The compound B with sodium metal in the presence of dry ether and gives n-butane. Thus, A and B are:

1. C₂H₅OH and C₂H₅Cl

2. C₂H₅Cl and C₂H₅ONa

3. C₃H₇OH and CH₃CH₂CH₂OCl

4. C₄H₉OH and C₄H₉OCl

Compound that is not an alcohol-

1. CH₂=CHCH₂OH                            

2. CH₂OHCH₂OH

3. C₆H₅CH₂OH                                 

4. C₆H₅OH

The boiling point of p-nitrophenol is higher than that of o-nitrophenol because -               

1. NO₂ group at p-position behaves in a different way from that at o-position.

2. Intramolecular hydrogen bonding exists in p-nitrophenol.

3. There is intermolecular hydrogen bonding in p-nitrophenol.

4. p-Nitrophenol has a higher molecular weight than o-nitrophenol.