Advertisements
Advertisements
प्रश्न
Out of CH3CH2 – CO – CH2 – CH3 and CH3CH2 – CH2 – CO – CH3, which gives iodoform test?
Advertisements
उत्तर १
CH3CH2 – CH2 –CO –CH3
उत्तर २
Pentan-2-one (CH3-CH2-CH2-CO-CH3) give yellow precipitate of CHI3 with NaOI, thats means it gives iodoform test.
Pentan-3-one (CH3-CH2-CO-CH2-CH3) does not give yellow precipitate with CHI3 with NaOI, so Pentan-3-one does not give iodoform test.
APPEARS IN
संबंधित प्रश्न
Give a simple chemical test to distinguish between the following pair of compounds:
Ethanal and Propanal
Distinguish between: CH3COOH and HCOOH
Which of the following compounds gives a positive Tollen's test but negative Fehling's test?
Acetone and acetaldehyde are differentiated by
Acetaldehyde cannot show?
Write chemical test to distinguish between the following compounds:
Phenol and Benzoic acid
What is the composition of Fehling's reagent?
The correct set of products obtained in the following reactions:
- \[\ce{RCN ->[reduction]}\]
- \[\ce{RCN ->[(i) CH3MgBr][(ii) H2O]}\]
- \[\ce{RNC ->[hydrolysis]}\]
- \[\ce{RNH2 ->[HNO2]}\]
In Tollen's test for aldehyde, the overall number of electrons(s) transferred to the Tollen's reagent formula \[\ce{[Ag(NH3)2]+}\] per aldehyde group to form silver mirror is ______. (Round off to the nearest integer)
An organic compound 'A' with molecular formula C5H8O2 is reduced to n-pentane with hydrazine followed by heating with NaOH and glycol. 'A' forms a dioxime with hydroxylamine and gives a positive iodoform and Tollen's test. Identify 'A' and give its reaction for iodoform and Tollen's test.
