Which one of the following has highest boiling point?
H3CCH2CH2CH2Cl
(H3C)2CHCH2Cl
(H3C)3CCl
H3CCH2CHClCH3
The product Z of the following reaction is H3CC≡CH Z.
H3CCH2CHBr2
H3CCBr2CH3
H3CCHBrCH2Br
BrCH2CH2CH2Br
Identify X and Y in the following reaction sequence
X | Y |
(CH3)2CHBrCH3 | CH3CH=CHCH3 |
X | Y |
(CH3)2CHCH2Br | CH3CH=CHCH3 |
X | Y |
(CH3)2CBrCH2Br | (CH3)2C=CH2 |
X | Y |
(CH3)2CHCHBr2 | (CH3)2C=CH2 |
Oxidation of cyclohexene in presence of acidic potassium permaganate leads to
glutaric acid
adipic acid
pimelic acid
succinic acid
Cyclopentadienyl anion is
benzenoid and aromatic
non-benzenoid and aromatic
non-benzenoid and non-aromatic
non-benzenoid and anti- aromatic
The reactivity of alkyl bromides.
Towards iodide ion in dry acetone decrease in the order
V > I > II > III
I > IV> II> III
III> II> I> I
III > II > IV > I
Optically active CH3—CH2—CHOH—CH3 was found to have lost its optical activity after standing in water containing a few drops of acids, mainly due to the formation of
CH3—CH2—CH=CH2
CH3—CH=CH—CH3
CH3—CH(CH3)—CH2—OH
CH3—CH2—CH2—CH2—OH
Which one of the following alkenes when treated with HCl yields majority an anti Maxkovnikov product?
CH3O-CH=CH2
Cl-CH=CH2
F3C-CH=CH2
H2N-CH=CH2
Polysubstitution is a major drawback in
Friedel Craf t’ s alkylation
Reimer Tiemann reaction
FriedelCraft's acylation
Acetylation of aniline
A.
Friedel Craf t’ s alkylation
Polyalkylation – Products of Friedel–Crafts are even more reactive than starting material. Alkyl groups produced in Friedel–Crafts Alkylation are electron–donating substituents meaning that the products are more susceptible to electrophilic attack than reactant.
The increasing order of the reactivity of the following compounds towards electrophilic aromatic substitution reactions is :
III < I <II
III< II<I
I< III< II
II< I < III