CBSE
Multiple Choice QuestionsAssertion: HC= C- is more stable than H2C CH-
Reason : HC C- has more s-character than HC= CH-
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.
In the reaction ,
R - X B B
The product B is :
alkyl chloride
aldehyde
carboxylic acid
ketone
Assertion : Aryl sulphunic acid gives phenol or reacting with NaOH at high temperature.
Reason : This reaction is electrophilic substitution reaction.
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.
An alkyl halide reacts with alcoholic ammonia in a sealed tube , the product formed will be :
a primary amine
a secondary amine
a tertiary amine
a mixture of all the three
The catalyst used in the preparation of an alkyl chloride by the action of dry HCl on an alcohol is :
anhydrous AlCl3
Fecl3
anhydrous ZnCl2
Cu
Find the product for
CH3CH2-O-CH2-CH2-O-CH2-C6H5+ HI (excess)
HO-CH2CH2OH, C6H5CH2-I, CH3CH2-I
C6H5CH2-OH, CH3CH2-I, I-CH2CH2-OH
I-CH2CH2-I, C6H5CH2-I, CH3CH2-OH
HO-CH2CH2-OH, C6H5CH2-I, CH3CH2-OH
The major product of the following reaction is
CH3CH=CHCH3 + CHCl3 + t-BuOK ➔ A. A is
SN2 reaction readily occurs in
CH3CH2-O-CH3
CH3-C(CH3)2-O-CH3
CH2=CH-CH2-O-CH3
Ph-CH2-O-CH2-CH3
Which of the following reaction follows SN1 mechanism ?
(CH3)2C-CH2Cl + CH2OK
(CH3)2C-CH2Cl + HCl
(CH3)3C-Cl + NaOH
(CH3)2CHI + H2O
