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Q. Chlorination of thiophene by using Chlorine at 243K will form__________.

Q. Which of the following statements is (are) true for the compound (3R, 4R)-3,4-dimethylhexane?

Q. Which heteroatom present in pyrrole?

Q. Friedel craft acetylation of furan by using acetic anhydride is carried out in the presence of catalyst______.

Q. 1 Hexane and 3-methylpentane are examples of:

Q. Oxidation of furan produces_________.

Q. Which one of the following can exist in optically active forms?

Q. What can be said with certainty if a compound has [!] D/25 = -9.25º ?

Q. Thiophene is reduced with Raney nickel (Ni) which results in removal of sulphur to form______.

Q. Which condition is appropriate for the nitration of thiophene?