Which of these compounds is/are and Z alkene? A) I only B) I and IV only C) I, I

Question

Which of these compounds is/are and Z alkene? A) I only B) I and IV only C) I, II, and IV only D) III and IV only The antibiotic, which is effective against typhoid fever, contains which functional group? 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 Which is/are the possible produce(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-cyclo as a reagent What type of organic reaction intermediate is observed for this reaction? (A) carbanion (B) carbocation (C) radial (D) radical cation Which set of reagents is best suited to carry out this transformation? (A) Catalytic acid m 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 and IV only

The Z configuration of the alkene is the one that has high priority groups on the same side of the double bond , whereas the E configuration is the one , that has high priority groups on the opposite side of the double bond.

In structure III and IV , the high priority groups are on the opposite sides , and hence they are E alkenes and not Z alkenes.

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