IUPAC name of
CH3CH2C(Br)=CH-Cl is :
2 - bromo - l - chloro butene - 1
1 - chloro - 2 - bromo - butene
3 - chloro - 2 - bromo butene - 2
none of these
Which of the following sequence of reactions (reagents) can be used for the conversion of C6H5CH2CH3 into C6H5CH=CH2?
SOCl2 ; H2O
SO2Cl2; alc. KOH
Cl/h; H2O
SOCl2 ; alc. KOH.
Which ofthe following compounds has the highest boiling point?
CH3CH2CH2Cl
CH3CH2CH2CH2Cl
CH3CH(CH3)CH2Cl
(CH3)3CCl
The correct increasing order of the reactivity of halides for SN 1 reaction is
CH3- CH2- X<(CH3)2CH= X <CH2= CH-CH2- X< PhCH2- X
(CH3)2CH-X <CH3-CH2- X < CH2= CH - CH2-X < PhCH2-X
PhCH2- X<(CH3)2CH=X<CH3-CH2-X<CH2= CH- CH2- X
CH2= CH - CH2- X < Ph- CH2- X <(CH3)2CH-X <CH3-CH2- X
The major product formed in the following reaction is
(CH3)2CH-CH2OCH3
CH3-CH(OCH3)-CH2CH3
CH3-C(CH3)=CH2
(CH3)2-C-OCH3- CH3
The major product obtained on treatment of CH3CH2CH(F)CH3 with CH3O/CH3OH is
CH3CH2CH(OCH3)CH3
CH3CH = CHCH3
CH3CH2CH = CH2
CH3CH2CH2CH2OCH3
CH3CO2C2H5 on reaction with sodium ethoxide in ethanol gives A, which on heating in the presence of acid gives B. Compound B is
CH3COCH2COOH
CH3COCH3
CH2=C(OC2H5)2
Assertion : Rate of hydrolysis of methyl chloride to methanol is higher in DMF than in water.
Reason : Hydrolysis of methyl chloride follows second order kinetics.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Which ofthe following is involved in Sandmeyer's reaction ?
Ferrous salt
Diazonium salt
Ammonium salt
Cupromonium salt
B.
Diazonium salt
Aryl halides can be prepared by the decomposition of aryl diazonium salts in presence of copper halides solution dissolved in the corresponding halogen acid, the diazo group is replaced by a halogen atom. This reaction is known as Sandmeyer reaction.