Q. Thiophene on catalytic reduction with large amount of palladium (Pd) gives_________.
✅ Correct Answer: (D)
Tetra hydro thiophene
Pharmaceutical Organic Chemistry 3 MCQs and Notes
Q. What would be the reducing agent for the following reduction of thiophene?
✅ Correct Answer: (A)
Na + ammonia
Q. Identify the reaction:
✅ Correct Answer: (B)
Canizzaro reaction
Q. Bromination of thiophene by using Bromine in benzene will produce________
✅ Correct Answer: (D)
2,5 – di bromo thiophene
Q. Chlorination of thiophene by using Chlorine at 243K will form__________.
✅ Correct Answer: (C)
2- chloro thiophene + 2,5- dichloro thiophene
Q. What will be the product of the following reaction?
✅ Correct Answer: (C)
2 – bromo thiophene
Q. What will be the product of the following reaction?
✅ Correct Answer: (A)
2- iodo thiophene
Q. Complete the reaction:
✅ Correct Answer: (D)
SO2Cl2
Q. Chloromethylation of thiophene is carried out with HCHO & HCl, it will produce_______.
✅ Correct Answer: (A)
2- chloromethyl thiophene
Q. Sulfonation of thiophene can be carried out by using______________.
✅ Correct Answer: (C)
Concentrated Sulphuric acid