Top 150+ Solved Pharmaceutical Organic Chemistry 3 MCQ Questions Answer
Q. Bromination of thiophene by using Bromine in benzene will produce________
a. 5 – bromo thiophene
b. 3- bromo thiophene
c. 2 – bromo thiophene
d. 2,5 – di bromo thiophene
Q. Identify the reaction:
a. Reimer Tiemann reaction
b. Canizzaro reaction
c. Vilsmeir – Hoack reaction
d. Benzoin condensation
Q. What would be the reducing agent for the following reduction of thiophene?
a. Na + ammonia
b. Hydrogen gas + Ni
c. Pd + ammonia
d. Pd + Hydrogen gas
Q. Thiophene on catalytic reduction with large amount of palladium (Pd) gives_________.
a. 2 – thiolen
b. 3 – thiolen
c. n – Butane
d. Tetra hydro thiophene
Q. Thiophene is reduced with Raney nickel (Ni) which results in removal of sulphur toform______.
a. 2 – thiolen
b. 3 – thiolen
c. n – Butane
d. Tetra hydro thiophene
Q. Which drug(s) contain thiophene ring in its(their) structure?
a. Cephalothin
b. Cefoxitin
c. Temocillin
d. All of the above
Q. Which drug(s) contain thiophene ring in its(their) structure?
a. Tinoridine
b. Tiaprofenic
c. Tenoxicam
d. All of the above
Q. Thiophene & its derivatives show following pharmacological activity.
a. Sedative
b. Hypnotic
c. Anticonvulsant activity
d. All of the above
Q. Clotiazepam, CNS active agent, possess __________ heterocyclic ring.
a. Thiophene
b. Oxazole
c. Pyridine
d. Pyrrole
Q. Ticlopidine, anticoagulant activity, contain _________ heterocyclic compound.
a. Thiazole
b. Thiophene
c. Furan
d. Indole
Q. Which pharmacological effect is not produced by thiophene derivatives?
a. Anticoagulants
b. Diuretics
c. Coagulants
d. Anti asthmatics
Q. Thiophene probably undergoes to ___________ reaction.
a. Electrophilic substitution
b. Nucleophilic substitution
c. Electrophilic addition
d. Nucleophilic addition
Q. Furan probably undergoes to ___________ reaction.
a. Electrophilic substitution
b. Nucleophilic substitution
c. Electrophilic addition
d. Nucleophilic addition
Q. Pyrrole probably undergoes to ___________ reaction.
a. Electrophilic substitution
b. Nucleophilic substitution
c. Electrophilic addition
d. Nucleophilic addition