Related InterviewSolutions

• Which of the statements are correct about the reaction given below ? A. Formation of (B) by Path I is much more faster than by Path II.B. Formation of (B) by Path II is much more faster than by Path I.C. Formation of (B) by both paths is equal.D. (B) is formed by Path II only.
• Which of the statements are correct about the given reaction ? A. Two enantiomeric products are obtained.B. Three products, racemate, and meso products are obtained.C. The reaction proceeds vid the formation of radical anion.D. The reaction is called Pinacol-Pinacolone rearrange-
• Which of the following reactions are correct ?A. B. C. D.
• Which of the statements are about the following reaction ? A. Ketones are more reactive than RCOCl, therefore ketones further react with RMgX to give `3^(@)` alcohols.B. `(C-Mg)` bond is more ionic than `(C-Cu)` or `(C-Cd)` bond.C. Nucleophile `R^(overset(..)(Θ))` from Grignard reagent is more reactive and the reaction of RMgX with RCOCl is a nucleophilic addition reaction.D. Cu or Cd forms complex with Cl of RCOCl, `[R-overset(delta+)underset(O)underset(||)C...Cl...overset(delta-)CdR_(2)]`, similar to acylium-like ion with greater `(delta+)` charge on C, which bonds even with the weakly nucleophilic R of `R_(2)Cd` or `R_(2)CuLi`.
• Find out which statement is correct.A. Path I proceeds by nucleophilic addition `(HOO^(Θ))` on the `(C=C)` bond followed by Michael addition with (A) to give `alpha`-carbanion which displaces `overset(Θ)(OH)` form `(HOO)` group to give epoxide (B).B. Path II proceeds by electrophilic addition `(overset(Θ)(OH))` on the `(C=C)` bond followed by the removal of H from `(OH)` by nucleophile `(RCOO^(Θ))` to give epoxide (B).C. Path I is faster since it proceeds by the formation of resonance-stabilised `alpha`-carbanion as shown. D. Path II is faster since it proceeds by the formation of epoxide ion
• For the Cannizzaro reaction in which of the statement is true regarding order and molecularity of the reaction ?A. `R=K [Ald]^(2)[OH^(-)]^(2)` , 4th order, bimolecularB. `R=K [Ald]^(2)[OH^(-)]`, 3rd order, bimolecularC. `R=K [Ald]^(2)[OH^(-)]^(2)`, 4th order, tetramolecularD. `R=K[Ald]^(2)[OH^(-)]`, 3rd order, trimolecular
• For the Cannizzaro reaction in which of the following statements is true regarding order and molecularity of the reaction ?A. `R=K [Ald]^(2)[OH^(-)]^(2)` , 4th order, bimolecularB. `R=K [Ald]^(2)[OH^(-)]`, 3rd order, bimolecularC. `R=K [Ald]^(2)[OH^(-)]^(2)`, 4th order, tetramolecularD. `R=K[Ald]^(2)[OH^(-)]`, 3rd order, trimolecular
• The products are:A. B. C. D.
• Prodect (B) is:A. B. C. D.
• Which of the following are correct (B) and (C ) products, respectively ? I. II. , III. IV. , v. A. (I), (V)B. (I), (III)C. (II), (V)D. (II), (IV)