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Passage Organic compounds mainly consi...

Passage
Organic compounds mainly consist of covalent bonds. The electron pair in these covalent bonds may undergo displacement either of their own or under the influence of other species. The cleavage of covalent bond between two atoms takes place in homolytic or heterolytic fashion. The homolytic fission results into free radicals while heterolytic fission results into carbocations and carbanions. These are also called reaction intermediates and are attacked by electrophiles and nucleophiles. The electrophiles seek electron rich sites while nucleophiles seek electron deficient sites.
Answer the followings Questions :
Which of the following series contain only nucleophiles:

A

`AICI_3, BF_3, NH_3`

B

`RCOO^(-), CH_(3)^(-), CN^(-)`

C

`NH_(3), SO_(3), ROR`

D

`NO_(2)^(+), BF_(3), CI^(+)`

Text Solution

Verified by Experts

The correct Answer is:
B
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Passage Organic compounds mainly consist of covalent bonds. The electron pair in these covalent bonds may undergo displacement either of their own or under the influence of other species. The cleavage of covalent bond between two atoms takes place in homolytic or heterolytic fashion. The homolytic fission results into free radicals while heterolytic fission results into carbocations and carbanions. These are also called reaction intermediates and are attacked by electrophiles and nucleophiles. The electrophiles seek electron rich sites while nucleophiles seek electron deficient sites. Answer the followings Questions : The most stable free radical among the following is

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  • Passage Organic compounds mainly consist of covalent bonds. The electron pair in these covalent bonds may undergo displacement either of their own or under the influence of other species. The cleavage of covalent bond between two atoms takes place in homolytic or heterolytic fashion. The homolytic fission results into free radicals while heterolytic fission results into carbocations and carbanions. These are also called reaction intermediates and are attacked by electrophiles and nucleophiles. The electrophiles seek electron rich sites while nucleophiles seek electron deficient sites. Answer the followings Questions : Which of the following is most stable carbocation ?

    A
    `Ph_(2) CH^(+)`
    B
    `Ph CH_(2)^(+)`
    C
    `Ph_(3) C^(+)`
    D
    `Ph^(+)`

  • Passage Organic compounds mainly consist of covalent bonds. The electron pair in these covalent bonds may undergo displacement either of their own or under the influence of other species. The cleavage of covalent bond between two atoms takes place in homolytic or heterolytic fashion. The homolytic fission results into free radicals while heterolytic fission results into carbocations and carbanions. These are also called reaction intermediates and are attacked by electrophiles and nucleophiles. The electrophiles seek electron rich sites while nucleophiles seek electron deficient sites. Answer the followings Questions : The most stable carbocation is :

    A
    `CH_(3)^(+)`
    B
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    C
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    D
    `(CH_3)_2 CH^(+)`

  • Passage Organic compounds mainly consist of covalent bonds. The electron pair in these covalent bonds may undergo displacement either of their own or under the influence of other species. The cleavage of covalent bond between two atoms takes place in homolytic or heterolytic fashion. The homolytic fission results into free radicals while heterolytic fission results into carbocations and carbanions. These are also called reaction intermediates and are attacked by electrophiles and nucleophiles. The electrophiles seek electron rich sites while nucleophiles seek electron deficient sites. Answer the followings Questions : Which of the following is the most stable cation ?

    A
    `F_(3) C- CH_(2)^(+)`
    B
    `(CH_(3))_2 CH^(+)`
    C
    `CH_(3)^(+)`
    D
    `CF_(3)^(+) `

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