Q 1 :    

[IMAGE 416]

This reduction reaction is known as:                                   [2024]

• Rosenmund reduction

   

• Wolff-Kishner reduction

   

• Stephen reduction

   

• Etard reduction

   

Q 2 :    

In the given reactions, identify the reagent A and reagent B.                         [2024]

[IMAGE 417]

• $A-Cr{O}_3 B-Cr{O}_3$

   

• $A-Cr{O}_3 B-Cr{O}_{2}C{l}_2$

   

• $A-Cr{O}_{2}C{l}_2 B-Cr{O}_{2}C{l}_2$

   

• $A-Cr{O}_{2}C{l}_2 B-Cr{O}_3$

   

Q 3 :    

Identify the name reaction.                                     [2024]

[IMAGE 419]

• Etard Reaction

   

• Stephen Reaction

   

• Gatterman - Koch Reaction

   

• Rosenmund Reduction

   

Q 4 :    

Identify A and B in the following sequence of reaction                                    [2024]

[IMAGE 420]

• [IMAGE 421]

   

• [IMAGE 422]

   

• [IMAGE 423]

   

• [IMAGE 424]

   

Q 5 :    

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In the above chemical reaction sequence "A" and "B" respectively are                             [2024]

 

• ${\mathrm{H}}_2\mathrm{O},{\mathrm{H}}^{+}\mathrm{and} {\mathrm{KMnO}}_4$

   

• ${\mathrm{O}}_3,\mathrm{Zn}/{\mathrm{H}}_2\mathrm{O} \mathrm{and} {\mathrm{KMnO}}_4$

   

• ${\mathrm{H}}_2\mathrm{O},{\mathrm{H}}^{+} \mathrm{and} \mathrm{NaOH}\left(\mathrm{alc}\right)/{\mathrm{I}}_2$

   

• ${\mathrm{O}}_3,\mathrm{Zn}/{\mathrm{H}}_2\mathrm{O} \mathrm{and} {\mathrm{NaOH}}_{\left(\mathrm{alc}\right)}/{\mathrm{I}}_2$

   

Q 6 :    

The number of the correct reaction(s) among the following is _______.                       [2024]

[IMAGE 428]

Q 7 :    

Vanillin compound obtained from vanilla beans, has total sum of oxygen atoms and $\mathrm{\pi }$ electrons is _______.          [2024]