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Q. What is the product when thiophene reacts with Br2 in benzene?

Q. Which heteroatom present in pyrrole?

Q. Which heteroatom present in thiophene?

Q. Chloromethylation of thiophene is carried out with HCHO & HCl, it will produce_______.

Q. What is the percent composition of a mixture of (S)-(+)-2-butanol,[!] D/25 = +13.52º, and (R)-(-)-2-butanol,[!] D/25 = -13.52º, with a specific rotation [!] D/25 = +6.76º?

Q. Of the compounds which correspond to the general name "dichlorocyclobutane", how many are optically active?

Q. Which of these is a comparatively insignificant factor affecting the magnitude of specific optical rotation.

Q. What would be the reducing agent for the following reduction of thiophene?

Q. Which drug(s) contain thiophene ring in its(their) structure?

Q. What term describes the structural relationship between (E)- and (Z)-2-pentene?