Acid base theories are important to understand the role of many substances in different reactions. Different theories are in practice which have advantages as well as limitations at their level. We always consider most convenient theory under the given conditions.
Which of the following is strong conjugate base
Acid base theories are important to understand the role of many substances in different reactions. Different theories are in practice which have advantages as well as limitations at their level. We always consider most convenient theory under the given conditions.
Which of the following is strong conjugate base
Which of the following is strong conjugate base
A
`F^(-) `
B
` Cl^(-) `
C
` Br^(-) `
D
`l^(-) `
Text Solution
Verified by Experts
The correct Answer is:
A
`HF lt HCl lt HBr lt HI lt therefore F^(-) gt Cl ^(-) Br ^(-) gt I^(-) `
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Observe the following table and answer the questions given below. The table contains the aqueous solutions of different substances with the same concentrations and theii respective pH values. Which one of the above solutions is the strongest base ? Give a reason.
The products of bond breaking, shown below, are not stable, and cannot be isolated for prolonged study. Such species are referred to as reactive intermediate, and are belived to be transient intermediates in many reactions. The general structures and names of four such intermediates are, Charged Intermediates Uncharged Intermediates Carbocations (called carbonium ions in the older literature) are electrophiles and carbananions are nucleophiles. Carbenes have only a valence shell sextet of electrons and are therefore electron deficient. In this sense they are elecrophiles, but the non-bonding electron pair also gives carbenes nucleophilic character. As a rule, the electrophilic character dominates carbene reactivity. Carbon radicals have only seven valence electrons, and may be considered electron deficient, however, they do not in general bond to nucleophilic electron pair, so their chemistry exhibits differences from that of conventional electrophiles. Radical intermediates are often called free radicals. Intermediates are in general stabilised with conjugation, electron donating and electron with drawing groups. Which of the following is relatively an unstable intermediate compared to rest ?
Knowledge Check
Acid base theories are important to understand the role of many substances in different reactions. Different theories are in practice which have advantages as well as limitations at their level. We always consider most convenient theory under the given conditions. Which of the following is not Bronsted base
Acid base theories are important to understand the role of many substances in different reactions. Different theories are in practice which have advantages as well as limitations at their level. We always consider most convenient theory under the given conditions. Which of the following is not Bronsted base
A
`HS^(-)`
B
`CH_(3)COOH`
C
HF
D
`H_(3)O^(+)`
Acid base theories are important to understand the role of many substances in different reactions. Different theories are in practice which have advantages as well as limitations at their level. We always consider most convenient theory under the given conditions. Which of the following is not Arrhenius acid
Acid base theories are important to understand the role of many substances in different reactions. Different theories are in practice which have advantages as well as limitations at their level. We always consider most convenient theory under the given conditions. Which of the following is not Arrhenius acid
A
`H_(3)PO_(4)`
B
`HNO_(3)`
C
`H_(3)PO_(2)`
D
`H_(3)BO_(3)`
Acid base theories are important to understand the role of many substances in different reactions. Different theories are in practice which have advantage as well as limitations at their level. We always consider most convenient theory under the given conditions. Which of the following is not Arrhenius acid
Acid base theories are important to understand the role of many substances in different reactions. Different theories are in practice which have advantage as well as limitations at their level. We always consider most convenient theory under the given conditions. Which of the following is not Arrhenius acid
A
`H_3PO_4`
B
`HNO_3`
C
`H_3PO_2`
D
`H_3BO_3`
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The products of bond breaking, shown below, are not stable, and cannot be isolated for prolonged study. Such species are referred to as reactive intermediate, and are belived to be transient intermediates in many reactions. The general structures and names of four such intermediates are, Charged Intermediates Uncharged Intermediates Carbocations (called carbonium ions in the older literature) are electrophiles and carbananions are nucleophiles. Carbenes have only a valence shell sextet of electrons and are therefore electron deficient. In this sense they are elecrophiles, but the non-bonding electron pair also gives carbenes nucleophilic character. As a rule, the electrophilic character dominates carbene reactivity. Carbon radicals have only seven valence electrons, and may be considered electron deficient, however, they do not in general bond to nucleophilic electron pair, so their chemistry exhibits differences from that of conventional electrophiles. Radical intermediates are often called free radicals. Intermediates are in general stabilised with conjugation, electron donating and electron with drawing groups. R-N^(+) equiv N" "Cl^(-) rarr R^(+)+N_(2)+Cl^(-) based on the above, which of the following from R^(+) most readily
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