The reagent used to distinguish between acetaldehyde and benzaldehyde is
Tollen's reagent
Fehling's solution
2-4-dinitrophenyl hydrazine
semicarbazide
X Y + Z
Y can be obtained by Etard's reaction, Z undergoes disproportionation reaction with concentrated alkali. X could be
B.
Cannizzaro reaction is a characteristic reaction of carbonyl compound having absence of α-hydrogen atom. Hence, correct substrate is
In Etard reaction toluene is oxidised to benzaldehyde with a solution of chromyl chloride m CS2 or CCl4 is as
Cannizzaro reaction is HCHO can be shown as-
CH2=O CH2OH + HCOONa
Iodoform reaction is answered by all, except
CH3-CH(OH)-CH2-COOH
CH3CHO
CH3-CH2-OH
CH3-CH2-CH2OH
The distinguishing test between methanoic acid and ethanoic acid is
litmus test
Tollen's test
esterficiation test
sodium bicarbonate test
The formation of cyanohydrins from a ketone is an example of
nucleophilic substitution
nucleophilic addition
electrophilic addition
electrophilic substitution
In the sequence of following reactions
The starting compound P is
o- nitro toluene
m-nitro toluene
o-bromo toluene
p-nitro toluene
Acetic acid is treated with Ca(OH)2 and the product so obtained is subjected to dry distillation. The final product is
propanal
propanone
ethanal
ethanol
An organic compound X is oxidised by using acidified K2Cr2O7 solution. The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The compound X is,
2-propanol
Ethanal
Ethanol
CH3CH2CH3