Which of these compounds is/are not a Z alkene? (A) I only (B) I and IV only (C)

Question

Which of these compounds is/are not a Z alkene? (A) I only (B) I and IV only (C) I, II and IV only (D) III and IV only This antibiotic, which is effective against typhoid fever, contains which functional groups? (A) acid halide. amide, aromatic (B) aromatic, amide, nitro (C) nitro, amine, alcohol (D) amine, alcohol, nitro Which structure would be one of the intermediates in the mechanism for this reaction? For this reaction, what effect would halving the concentration of both the alkyl halide and nucleophile have on the rate? (A) the rate doubles (B) the rate quadruples (C) the rate decreases by half (D) the rate decreases by one fourth What is/are the possible product(s) of this reaction? (A) only I (B) only II (C) only I and II (D) I, II and III Which reaction requires 1, 3- as a What type of organic reaction intermediate is observed for this reaction? (A) carbanion (B) carbocation (C) radical (D) radical cation Which set of reagents is best suited to carry out this transformation? (A) Catalytic acid in water followed by heat (B) H_2 over Pd/C (C) H_2 over poisoned Pd/C (D) Na in liquid ammonia

Explanation / Answer

Ans 31 . D . III ans IV only

The Alkene has Z configuration , if the high priority groups are located on the same side of the double bond , whereas the E configuration is the one in which the high priority groups are located on the opposite sides of the double bond.

The III and IV structure has high priority groups on the opposite side of the double bond in the molecule , hence they are E , and not Z alkene.

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