Primary alcohols can be obtained from the reaction of the RMgX with:

1. HCHO                       

2. H₂O

3. CO₂                         

4. CH₃CHO

CH₃CH₂Cl$\stackrel{\mathrm{NaCN}}{\to }$X $\stackrel{\mathrm{Ni}/{\mathrm{H}}_2}{\to }$Y$\stackrel{\mathrm{Acetic} \mathrm{anhydride}}{\to }$Z

In the above reaction sequence, Z is

1. CH₃CH₂CH₂NHCOCH₃

2. CH₃CH₂CH₂NH₂

3. CH₃CH₂CH₂CONHCH₃

4. CH₃CH₂CH₂CONHCOCH₃

The best method to prepare cyclohexene from cyclohexanol is by using:

Dehydrogenation of 2-butanol gives:

1. 2-Butene                                         

2. Butanone

3. Butyraldehyde                                 

4. 1-Butene

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

Consider the following alcohols,

I.
II.
III.
IV.

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

R-CH₂-CH₂OH can be converted into RCH₂CH₂COOH. The correct sequence of reagents is: 

1. PBr₃, KCN, H⁺ 

2. PBr₃, KCN, H₂     

3. KCN, H⁺

4. HCN, PBr₃, H⁺

The major product in the acid catalysed dehydration of  would be

1. 

2. 

3. 

4. 

$\underset{{\mathrm{CH}}_2{\mathrm{Cl}}_2}{\overset{{\mathrm{Br}}_2}{\to }}$ W. Product W is:

1. 

2. 

3. 

4.