Synthesis of Aldehydes or Ketones from Hydrocarbons

Q.

Which are the starting materials for the preparation of

1. 

2. 

3. 

4. Any of the three

Q. Reductive ozonolysis of ethene produces.

1. ethanal
2. methanal
3. ethanal and methanal
4. acetone

Q. Benzaldehyde cannot be prepared by which of the following reactions?

1. 
2. 
3. 
4. 

Q. In Gattermann Koch reaction, the product found is :
$+CO+DCl\stackrel{AlC{l}_3}{\to }$ ___

1. 
2. 
3. 
4. 

Q. Benzaldehyde cannot be prepared by which of the following reactions?

1. 
2. 
3. 
4. 

Q. Which of the following compounds is formed on ozonolysis followed by hydrolysis of but-2-ene?

1. Acetone and formaldehyde
2. Acetaldehyde
3. Butyric acid
4. Acetone and Acetaldehyde

Q. $R-C\equiv N\stackrel{reagent}{\to }R-CHO$, reagent can be:

1. $SnC{l}_2/HCl/H_{2}O$
2. $DIBAL-H,H^{+}/H_{2}O$
3. $Pd-BaS{O}_4/$ boiling xylene
4. Both 1 and 2