CBSE
Multiple Choice QuestionsAssertion : Hydroxyketones are not directly used in Grignard reaction.
Reason : Grignard reagents react with hydroxyl group.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are true and the reason is not the correct explanation of the assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion : 2-bromobutane on reaction with sodium ethoxide in ethanol gives 1-butene as a major product.
Reason : 1-butene is more stable than 2-butene.
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
Assertion : Trans-2-butene on reaction with Br2 gives meso-2,3-dibromobutane.
Reason : The reaction involves syn -addition of bromine.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are true and the reason is not the correct explanation of the assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion : Benzyl bromide when kept in acetone water it produces benzyl alcohol.
Reason : The reaction follows SN2 mechanism.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are true and the reason is not the correct explanation of the assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
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.
Assertion : The major products formed by heating C6H5CH2OCH, with HI are C6H5CH2I and CH3OH.
Reason : Benzyl cation is more stable than methyl cation.
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.
CH3-CH2-Cl A, the product is :
CH3CH2OK
CH3CHO
CH3CH2OCH2CH3
CH2=CH2
Among the following the dissociation constant is highest for
C6H5OH
C6H5CH2OH
CH3CCH
CH3NH3+Cl
The reaction :
C2H5OH SOCl2 C2H5Cl + SO2 + HCl is known as :
Kharasch effect
Williamson's synthesis
Darzen's procedure
Hunsdiecker reaction
