Which of the following is a free radical substitution reaction?
(1) Propene with HBr/(C6H5COO)2
(2) Benzene with Br2/AlCI3
(3) Acetylene with HBr
(4) Methane with Br2/hv
Which of the following compound is most reactive in electrophilic aromatic substitution?
The major product obtained from E2-elimination of 3-bromo-2-fluoropentane is
With respect to the conformers of ethane, which of the following statements is true? (a) Bond angle changes but bond length remains same. (b) Both bond angle and bond length change. (c) Both bond angle and bond length remain same. (d) Bond angle remains ...
Which one is the correct order of acidity?$\require{mhchem}$ (a) $\ce{ CH#CH > CH3-C#CH > CH2=CH2 > CH3-CH3 }$ (b) $\ce{ CH#CH > CH2=CH2 > CH3-C#CH > CH3-CH3 }$ (c) $\ce{ CH3-CH3 > CH2=CH2 > CH3-C#CH > CH#CH }$ (d) $\ce{ CH2=CH2 > CH3-CH=CH2 > CH3-C#CH > ...
Predict the correct intermediate and product in the following reaction :$\require{mhchem}$ $\ce{ CH3-C#CH ->[\ce{H2O,\ H2SO4}][\ce{HgSO4}] \underset{(A)}{Intermediate} -> \underset{(B)}{Product} }$
$\require{mhchem}\ce{CH3CH2CH=CH2->[\ce{B2H6}][\ce{H2O,H2O2,OH-}]Z}.$ What is Z? (1) $\ce{CH3CH2CH2CH3}$ (2) $\ce{CH3CH2CH2CH2OH}$ (3) $\begin{array}{c}\ce{CH3CH2CHCH3}\\\quad|\\\quad\ \ \ \ce{OH}\end{array}$ (4) $\ce{CH3CH2CH2CHO}$
The most suitable reagent for the following conversion, is : (1) Na/liquid NH3 (2) H2, Pd/C, quinoline (3) Zn/HCl (4) Hg2+/H+, H2O
An alkene "A" on reaction with O3 and Zn–H2O gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene "A" gives "B" as the major product. The structure of product "B" is:
If for a certain reaction ΔrH is 30 kJ mol–1 at 450 K, the value of ΔrS (in JK–1 mol–1) for which the same reaction will be spontaneous at the same temperature is (1) –70 (2) 70 (3) –33 (4) 33
Which of the following will NOT undergo SN1 reaction with OH- ? (1) (2) CH2 = CH – CH2Cl (3) (CH3)3CCl (4)
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