CH-10 Haloalkanes and Haloarenes

2

(a)

(b)

(c)

(d)

2

Which of the following is most reactive towards SN1 reaction?

(a) C6H5C(CH3)C6H5Br

(b) C6H5CH2Br

(c) C6H5CH(C6H5)Br

(d) C6H5CH(CH3)Br

2

The correct order of increasing the reactivity of C—X bond towards nucleophile in following compounds

(a) IV < III < I < II

(b) III < II < I < IV

(c) I < II < IV < III

(d) II < III < I < IV

2

m-Xylene reacts with Br2 in presence of FeBr3, what are products formed

(a)

(b)

(c)

(d)

2

Which of the following compound will undergo racemisation when reacts with aq. KOH?

(a) (i) and (ii)

(b) (ii) and (iv)

(c) (iii) and (iv)

(d) (iv)

2

(a)

(b)

(c)

(d)

2

CH₃CH₂CH₂Br + NaCN → CH₃CH₂CH₂CN + NaBr, will be fastest in

(a) ethanol

(b) methanol

(c) N, N dimethyl formamide

(d) Water

2

(a)

(b)

(c)

(d)

2

The synthesis of alkyl fluoride is best accomplished by

(a) Finkelstein reaction

(b) Swartz reaction

(c) Free radical fluorination

(d) Sandmeyers reaction

2

A dihalogen derivative ‘X’ of a hydrocarbon with three carbon atoms react with ale. KOH and produces hydrocarbon which forms red ppt. with ammonical Cu2Cl2. ‘X’ gives an aldehyde on reaction with aq. KOH. The compound ‘X’ is

(a) 1, 3-Dichloropropane

(b) 1, 2-Dichloropropane

(c) 2, 2-Dichloropropane

(d) 1, 1-Dichloropropane

CH-10 Haloalkanes and Haloarenes

Which of the following is most reactive towards SN1 reaction?

The correct order of increasing the reactivity of C—X bond towards nucleophile in following compounds

m-Xylene reacts with Br2 in presence of FeBr3, what are products formed

Which of the following compound will undergo racemisation when reacts with aq. KOH?

CH3CH2CH2Br + NaCN → CH3CH2CH2CN + NaBr, will be fastest in

The synthesis of alkyl fluoride is best accomplished by

A dihalogen derivative ‘X’ of a hydrocarbon with three carbon atoms react with ale. KOH and produces hydrocarbon which forms red ppt. with ammonical Cu2Cl2. ‘X’ gives an aldehyde on reaction with aq. KOH. The compound ‘X’ is

Which of the following is most reactive towards SN1 reaction?

The correct order of increasing the reactivity of C—X bond towards nucleophile in following compounds

m-Xylene reacts with Br2 in presence of FeBr3, what are products formed

Which of the following compound will undergo racemisation when reacts with aq. KOH?

CH3CH2CH2Br + NaCN → CH3CH2CH2CN + NaBr, will be fastest in

The synthesis of alkyl fluoride is best accomplished by

A dihalogen derivative ‘X’ of a hydrocarbon with three carbon atoms react with ale. KOH and produces hydrocarbon which forms red ppt. with ammonical Cu2Cl2. ‘X’ gives an aldehyde on reaction with aq. KOH. The compound ‘X’ is

CH₃CH₂CH₂Br + NaCN → CH₃CH₂CH₂CN + NaBr, will be fastest in

CH₃CH₂CH₂Br + NaCN → CH₃CH₂CH₂CN + NaBr, will be fastest in