Q 1 :    

m-chlorobenzaldehyde on treatment with 50% KOH solution yields                 [2024]

  •  

  •  

  •  

  •  

(2)



Q 2 :    

Given below are two statements:                                                                                             [2024]

Statement I: Acidity of α-hydrogens of aldehydes and ketones is responsible for Aldol reaction.

Statement II: Reaction between benzaldehyde and ethanal will NOT give Cross – Aldol product.

In the light of the above statements, choose the most appropriate answer from the options given below.

[Aldol Condensation Reaction]

  • Statement I is incorrect but Statement II is correct.

     

  • Statement I is correct but Statement II is incorrect.

     

  • Both Statement I and Statement II are correct.

     

  • Both Statement I and Statement II are incorrect.

     

(2)

Aldol condensation is because of acidic character of alpha hydrogen of aldehydes and ketones. Ethanal and benzaldehyde give cross aldol product as follows:

 



Q 3 :    

Two moles of benzaldehyde and one mole of acetone under alkaline conditions using aqueous NaOH after heating gives x as the major product. The number of π bonds in the product x is _______.                [2024]



(9)