Q.

Correct statements for the given reaction are:

(A) Compound ‘B’ is aromatic

(B) The completion of above reaction is very slow

(C) ‘A’ shows tautomerism

(D) The bond length of C–C in compound B are found to be same

Choose the correct answer from the options given below:                  [2023]

1 A, C and D only  
2 A, B and C only  
3 A, B and D only  
4 B, C and D only  

Ans.

(1)

Compound (A) shows tautomerism.