When Benzene diazonium chloride is treated with cuprous chloride in HCl, Chlorobenzene is formed, This reaction is known as –
a) Etard Reaction
b) Perkin’s Reaction
c) Gattermann’s Reaction
d) Sand Meyer’s Reaction
Which is the most reactive towards SN1 reaction –
a) \(C_6\)\(H_5\)\(CH_2\)Cl.
b) \(C_6\)\(H_5\)CH(\(C_6\)\(H_5\))Br.
c) \(C_6\)\(H_5\)CH(\(CH_3\))Br.
d) \(C_6\)\(H_5\)C(\(CH_3\))(\(C_6\)\(H_5\))Br.
The reaction R-Br + NaCN → R – CN + NaBr is an example of –
(a) Elimination Reaction.
(b) Nucleophilic Substitution.
(c) Electrophilic Substitution.
(d) Oxidation Reduction.
The reaction \({\\(CH_3\\)}_2\)CHCl + NaI → \({(\\CH_3\\)}_2\)CHI + NaCl is known as –
a) Finkelstein’s reaction.
b) Stephen’s reaction.
c) Kolbe’s reaction.
d) Wurtz reaction.
The Addition of HBr to 2—Pentene gives –
a) 2-Bromopentane only.
b) 3-Bromopentane only.
c) 2-Bromopentane and 3-Bromopentane.
d) 1-Bromopentane and 3-Bromopentane.
Which of the following is an example of vic-dihalide?
(a) Dichloromethane.
(b) 1,2-dichloroethane.
(c) Ethylidene chloride.
(d) Allyl chloride.
Chlorobenzene is formed by reaction of chlorine with benzene in the presence of \(AlCl_3\). Which of the following species attacks the benzene ring in this reaction?
(a) \(Cl^+\)
(b) \(Cl^-\)
(c) \(AlCl_3\)
(d) \({[\\(AlCl_4\\)]}^-\)
Molecules whose mirror image is non-superimposable over them are known as chiral. Which of the following molecules is chiral in nature?
(a) 2-Bromobutane.
(b)1-Bromobutane.
(c) 2-Bromopropane.
(d) 2-Bromopropan-2-ol.
Which is the correct increasing order of boiling points of the following compounds?
1-Iodobutane, 1-Bromobutane, 1-Chlorobutane, Butane
(a) Butane < 1-Chlorobutane < 1-Bromobutane < 1-Iodobutane.
(b) 1-Iodobutane < 1-Bromobutane < 1-Chlorobutane < Butane.
(c) Butane < 1-Iodobutane < 1-Bromobutane < 1-Chlorobutane.
(d) Butane < 1-Chlorobutane < 1-Iodobutane < 1-Bromobutane.
Which of the following will have the maximum dipolemoment?
(a) \(CH_3\)F.
(b) \(CH_3\)Cl.
(c) \(CH_3\)Br.
(d) \(CH_3\)I.
A Grignard reagent may be made by reacting magnesium with
a) Methyl amine.
b) Diethyl ether.
c) Ethyl iodide.
d) Ethyl alcohol.
Aryl halides can not be prepared by the reaction of arylalcohols with \(PCl_3\), \(PCl_5\) or \(SOCl_2\) because :
(a) phenols are highly stable compounds.
(b) carbon-oxygen bond in phenols has a partial doublebond character.
(c) carbon-oxygen bond is highly polar
(d) all of these