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66.

Oxymercuration of alkenes may be used to prepare :

(^) Alkanes ൯) Alkynes
( Alkanoic acid () Alcohols
The reaction, which is used to convert phenol to salicylic acid is :
(^) Kolbe-Schmidt reaction ൯) Phthalein reaction
(೮) Leibermann reaction (D) Cannizzaro reaction

Reformatsky reaction is the reaction between a carbonyl compound, zinc and :
(A) Unsaturated acid (B) Unsaturated ester
(@ a@-Halo ester ൬) ലിം ester

The reagent which is capable of reacting both with aldehyde as well as ketone :
(^) Schiff’s reagent (B) Grignard reagent
( Tollen’s reagent ൯൬) Fehling’s solution

Benzoin condensation takes place between :
(A) Aromatic aldehyde and aromatic ketone
(B) Aromatic aldehyde and aliphatic ketone
(C) Aromatic aldehyde and aliphatic aldehyde
(D) Aromatic aldehyde only

Which of the following method is specific for the preparation of aromatic aldehydes?
(^) Stephen’s reaction ൯) Etard’s reaction
(C) Rosenmund reduction (D) Hydrolysis of gem dihalides

Perbenzoic acid reacts with alkenes to form :
(A) Epoxides (B) Ethers
(0) Glycols () Alcohols

Hell Volhard Zelenski reaction is used to prepare :
(^) Acid halides (B) Nuclear halogen acid halides
(C) Nuclear halogen acids (D) Side chain halogen acids

Consider two identical containers, one with 1 mole of hydrogen and the other with 1 mole of
helium. If the RMS velocity of these two gases are the same, then the ratio of the
temperature, ie., Ty,/Ty, ‏تت‎

(A) (8)

नि }

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