Acetophenone when reacted with a base, C2H5ONa, yields a stable compound which has the structure
The major organic product in the reaction, CH3 — O — CH(CH3)2 + HI Product is :
(1) CH3OH+(CH3)2CHI
(2) ICH3OCH(CH3)2
(3) CH3O CI(CH3)2
(4) CH3I+(CH3)2CHOH
H2COH.CH2OH on heating with periodic acid gives :-
1. 2CO2
2. 2HCOOH
3. CHO-CHO
4.
Which of the following is not the product of dehydration of
1.
2.
3.
4.
Reaction of phenol with chloroform in the presence of dilute sodium hydroxide finally
introduces, which one of the following functional group?
1. -CH2Cl
2. -COOH
3. -CHCl2
4. -CHO
Identify A, X, Y and Z
(1) A-methoxymethane, X-ethanoic acid, Y-acetate ion, Z-hydrazine
(2) A- methoxymethane, X-ethanol, Y-ethanoic acid, Z- semicarbazide
(3) A-Acetaldehyde, X-ethanol, Y-but-2-en-1-ol, Z- semicarbazone
(4) A-ethanol, X-acetaldehyde, Y-butanone, Z-hydrazone
Which will form two oximes with NH2OH?
(1) CH3COCH3
(2) CH3CH2COCH3
(3) CH3CH2COCH2CH3
(4)
An organic compound A reacts with sodium metal and forms B. On heating with conc. H2SO4, A gives diethyl ether. So A and B are:
1. C3H7OH and CH3ONa
2. CH3OH and CH3ONa
3. C4H9OH and C4H9ONa
4. C2H5OH and C2H5ONa
Phenyl ethyl ether with concentrated hydrobromic acid on boiling yields:-
1. Phenol and ethyl bromide
2. Bromobenzene and ethanol
3. Phenol and ethane
4. Bromobenzene and ethane
A compound with molecular formula C4H10O3 is converted by the action of acetyl chloride to a compound with molar mass 190. The original compound has:
(1) one OH group
(2) two OH groups
(3) three OH groups
(4) no OH group