What is obtained on heating aldol derived from acetaldehyde?
Cyanohydrin
Crotonaldehyde
Oxime
Hydrazine
In which compound two halogen atoms are attached to the same carbon?
Gem dihalide
Ozonide
Dialkyl cadmium
Acetylene
Aldehydes and ketones react with HCN to form
Hydroxylamine
amine
Higher members of ketones and aldehydes are
Waxy solids
Volatile liquids
Volatile gas
Crystalline solids
Which of the following can give ketones?
Primary alcohols
Secondary alcohols
Tertiary alcohol
None of these
Which is the simplest member of aldehyde group?
Actaldehyde
Formaldehyde
Pentanaldehyde
Acraldehyde
Which catalyst is used for catalytic oxidation to obtain aldehyde or ketone?
Vanadium pentoxide
Platinized asbestos
Sponge ion
Silver catalyst
Which of the following is not an aromatic aldehyde?
Benzaldehyde
Phenyl acetaldehyde
Cinnamaldehyde
Acetaldehyde
What is the general formula for aldehydes?
R-CHO
R-CO-R
c) R3-C-OH
d)) R-COOH
Which of the following is the odd one?
Acidified potassium dichromate
Potassium permanganate
Tollen’s reagent
Formic acid
