Which catalyst is used for catalytic oxidation to obtain aldehyde or ketone?
Vanadium pentoxide
Platinized asbestos
Sponge ion
Silver catalyst
Aldehydes and ketones react with HCN to form
Hydroxylamine
Hydrazine
Cyanohydrin
amine
What differs aldehyde from ketones?
Double bonded structure
Hydrogen atom bonded to carbonyl group
Oxidation property
Reduction property
Which of the following can give ketones?
Primary alcohols
Secondary alcohols
Tertiary alcohol
None of these
Which of the following compound acts as a catalytic poison in rosenmund's reaction?
Nickel
Barium sulphate
What will be obtained when Tollen’s reagent is reduced by aldehydes?
Silver nitrate
Metallic silver
Red cuprous oxide
Paraldehyde
Which of the following is the odd one?
Acidified potassium dichromate
Potassium permanganate
Tollen’s reagent
Formic acid
Which of the following is not exhibited by ketones?
Chain isomerism
Metamerism
Functional isomerism
Positional isomerism
What is the general formula for aldehydes?
R-CHO
R-CO-R
c) R3-C-OH
d)) R-COOH
Which is the simplest member of aldehyde group?
Actaldehyde
Formaldehyde
Pentanaldehyde
Acraldehyde
