Which of the following is a coenzyme?
Aldehyde
Ketone
Pyridoxine
Pyridoxal
Which of the following is hypnotic?
Paraformaldehyde
Paraldehyde
Salicylaldehyde
Cinnamaldehyde
Higher members of ketones and aldehydes are
Waxy solids
Volatile liquids
Volatile gas
Crystalline solids
Which catalyst is used for catalytic oxidation to obtain aldehyde or ketone?
Vanadium pentoxide
Platinized asbestos
Sponge ion
Silver catalyst
What differs aldehyde from ketones?
Double bonded structure
Hydrogen atom bonded to carbonyl group
Oxidation property
Reduction property
Reduction of aldehydes and ketones to hydrocarbons is
Wolff kishner reduction
Clemmenson reduction
Rosenmund’s reduction
Cannizaro reaction
What is obtained on heating aldol derived from acetaldehyde?
Cyanohydrin
Crotonaldehyde
Oxime
Hydrazine
What is the general formula for aldehydes?
R-CHO
R-CO-R
c) R3-C-OH
d)) R-COOH
Which among the following will give primary alcohol on Grignard addition?
Formaldehyde
Acetaldehyde
Aldol
Which of the following is used as urinary antiseptic?
Hexa methylene tetramine
Hydrobenzamide
Di acetone amine
Hydroxylamine
