Which one is preferable reagent for given reaction ?
` R CH_(2)-X to HO - CH_(2) R`

The most suitable reagent for the conversion of R- CH_(2) - OH rarr R-CHO is

Which of the following reagents will you choose for the given reactions? H_(2)C=CH_(2)+H_(2)O+ O to underset(OH)underset(|)(CH_(2)C)-underset(OH)underset(|)(CH_(2))

What is the reagent A used in the following equation? R- COOH underset(A) (to) R- CH_(2) OH

Carboxylic acids having atleast one alpha -hydrogen react with Cl_(2) or Br_(2) in the presence of phosphorus ( or a phosphorus halide) to give alpha -halo acids. This reaction is known as Hell-Volhard-Zelinsky reaction (HVZ reaction), R-CH_(2)COOHunderset(Delta)overset(P//Br_(2))toR-overset(Br)overset(|)"CH"-COOH The HVZ reaction is limited to the formation of alpha -chloro and a-bromo acids and it is sometimes awkward to carry out. The reagents ( X_(2) and P) are noxious and the reaction time is often long and the conditions of reaction are harsh. R- CH_(2)-CH_(2)-OHto R-CH_(2) -CH_(2) - COOH In above conversion, the reactant (A) follows the sequence of reactions with three reagents