Question

1) What is/are the product (s) in the following reaction so,0, A) I only B) Il only C) III only D) II and IV E) I and IV 2) A -NO2 substituent on the aromatic ring is a _in electrophilic aromatic substitution reactions. A) a deactivator and a m-director. B) a deactivator and an o,p-director. C) an activator and a m-director. D) an activator and an o,p-director. 3) Which compound would be expected to show a broad peak around 3000cm-1? A) CHЗCH2COCH2СHS в) CнзCH2CN c) CH,CH,CECH D) CH3CH2COOH 4) The 'H NMR spectrum of the compound below has Н,с CH3 A) one singlet B) two singlets Cj one singlet, one doublet and a septet D) one singlet and two triplets E) one singlet, one triplet, one quartet and a septet

Answer 1

1.(A) 2.(A) 3.(D) 4.(C)

CF3 CF3 SO3H Reason: th, is an elechon wethdrawwg group directing meta- that is is the Correct opteon Hence, -NO, is an elecbon weithdrewng qpoup 2) that is seing deactivating and weta-directing is Hence, correct opteon Broad p-eak at 3000 cm s for 0-H stretch en carbozylic acid. Heuce, the corvect opton s 4) H. Types f hyeboogens = a, b ands -a will be suglet 6+1=7 (septet) -b well be Type Type -C wil be -2 doublet Hence, the orrect opton is