The order of decreasing reactivity towards an electrophilic reagent, for the following:
i) Benzene
ii) Toluene
iii) Chlorobenzene
iv) Phenol
would be:
(i) > (ii) > (iii) > (iv)
(ii) > (iv) > (i) > (iii)
(iv) > (iii) > (ii) >(i)
(iv) > (iii) > (ii) >(i)
The major organic product in the reaction,
CH3 -O- CH(CH3)2 + HI → Product is:
CH3OH + (CH3)2 + CHI
ICH2OCH(CH3)2
CH3O CI(CH3)2
CH3O CI(CH3)2
Which one is the correct order of acidity?
CH2= CH2> CH3– CH = CH2> CH3– C ≡ CH > CH ≡ CH
CH ≡ CH > CH3– C ≡ CH > CH2= CH2> CH3– CH3
CH ≡ CH > CH2= CH2> CH3– C ≡ CH >CH3– CH3
CH ≡ CH > CH2= CH2> CH3– C ≡ CH >CH3– CH3
The heating of phenyl-methyl ethers with HI produces.
Ethyl chlorides
Iodobenzene
Phenol
Phenol
The compound A on treatment with Na gives B, and with PCl5 gives C. B and C react together to give diethyl ether. A, B and C are in the order
C2H5OH, C2H6, C2H5Cl
C2H5OH, C2H5Cl, C2H5ONa
C2H5OH, C2H5ONa, C2H5Cl
C2H5Cl, C2H6, C2H5OH
In the reaction,
The electrophile involved is
Dichloromethyl cation (C+HCl2)
Formyl cation (C+HO)
Dichlorocarbene (:CCl2)
Dichloromethyl anion (C-HCl2)
Aqueous 10% NaHCO3 solution is used as a reagent for identifying 'A'. Which of the following compounds yield 'A' on hydrolysis?
CH3COOC2H5
C2H5-COO-C2H5
CH3CHO
CH3CH2OH
A.
CH3COOC2H5
NaHCO3 is basic in nature so it is used in the identification of acid only. In the given compound only ester (CH3COOC2H5) on hydrolysis gives acid as