Which of the following has the highest nucleophilicity ?A. `F^(-)`B. `

1.	Which of the following has the highest nucleophilicity ?A. `F^(-)`B. `OH^(-)`C. `CH_(3)`D. `NH_(2)^(-)`
Answer» Correct Answer - C As the electronegativity of the donor atom decreases, its tendency to donate a lone pair increases i.e., nucleophilicity increases. Order of electronegativity of F, O, N, C is : C lt N lt O lt F The least electronegative is carbon, as such `CH_(3)^(-)` is the strongest nucleophile.

Discussion

No Comment Found

Related InterviewSolutions

The type of isomerism observed in urea and `NH_(2)-CH=NOH`A. ChainB. PositionC. GeometricalD. Tautomerism
An organic compound with formula `C_(4)H_(6)(X)` gives precipitate of X and reacts with 1 mole of `Br_(2)` to form 1, 4-dibromo-2-butene. X and Y areA. `CH_(3)CH_(2)-C-=CH` and `CH_(2)=CH-CH=CH_(2)`B. `CH_(3)-=C CH_(3)` and `CH_(3)CH_(2)C-=CH`C. `CH_(3)C-=C CH_(3)` and `CH_(3)CH=C=CH_(2)`D.
When ethyl alcohol and `KI` reacted in presence of `Na_(a)CO_(3)` yellow crystals of …are formed ? .A. `CHI_(3)`B. `CI_(4)`C. `CH_(2)I_(2)`D. `C_(2)H_(5)I`
The replacement of chlorine of chlorobenzene to give phenol requires drastic conditions, but the chlorine of 2,4-dinitrochlorobenzene is readily replaced sinceA. nitro groups make the aromatic ring electron rich at ortho/prar position.B. nitro groups withdraw electrons from meta position of the aromatic ring.C. nitro groups donate electrons at meta position.D. nitro groups withdraw electrons from ortho/para position at the aromatic ring.
When ethyl alcohol and `KI` reacted in presence of `Na_(a)CO_(3)` yellow crystals of …are formed ? .A. `CHI_(3)`B. `CH_(3)I`C. `CH_(2)I_(2)`D. `C_(2)H_(5)I`
Assertion: `C_(6)H_(5)CI` on treating with `NaOH` does not show replacement of `CI` atom by `OH` Reason: The resonance in chlorobenzene stabilizen the molecule .A. If both assertion and reason are true and the reasone is the correct explanation of the assertion .B. If both assertion and reason are true but reason is the correct explanation of the assertion .C. If assertion is true but reasone is falseD. If assertion is false but reason is true .
Assertion The p - isomer of dichlorobenzene has higher m.p than o-and m isomer Reason p-isomer is symmetrical and thus shows more closely packed structure .A. If both assertion and reason are true and the reasone is the correct explanation of the assertion .B. If both assertion and reason are true but reason is the correct explanation of the assertion .C. If assertion is true but reasone is falseD. If assertion is false but reason is true .
When ethyl chloride is heated with AgCN, the main product is :A. `C_(2)H_(5)NC`B. `C_(2)H_(5)NH_(2)`C. `C_(2)H_(5)CN`D. None of these
Ethyl alcohol gives ethyl chloride with the help ofA. `SOCl_(2)`B. NaClC. `Cl_(2)`D. KCl
Wurtz reaction of methyl iodide yields an organic compound `X` Which one of the following reactions also yields `X` .A. `C_(2)H_(5)CI +Mg overset("dryether")rarr`B. `C_(2)H_(5)Cl+LiAlH_(4)to`C. `C_(2)H_(5)CI+C_(2)H_(5)ONa rarr`D. `CHCI_(3)underset(Delta)overset("Ag powder")rarr`

Which of the following has the highest nucleophilicity ?A. `F^(-)`B. `OH^(-)`C. `CH_(3)`D. `NH_(2)^(-)`

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment