The decreasing order of nucleophilicities of the following is :
$I : M e_{3} C H$
$I I : M e_{2} N H$
$I I I : M e O H$
$I V : H B r$

(I) > (I I) > (I I I) > (I V)

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(I V) > (I I I) > (I I) > (I)

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(I V) > (I I I) > (I) > (I I)

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(I I) > (l) > (I I I) > (I V)

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Solution

The correct option is B $(I V) > (I I I) > (I I) > (I)$
Acidity : $H B r > M e O H > M e_{2} N H > M e_{3} C H$
Basicity and nucleophilicity:
$B r^{⊝} < M e O^{⊝} < M e_{2} N^{⊝} < M e_{3} C^{⊝}$
i.e., $(I V) > (l l I) > (I I) > (I)$

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Similar questions

The decreasing nucleophilic order of the following compound is:

$(i) Θ C H_{3}$

$(i i) Θ N H_{2}$

$(i i i) Θ O H$

$(i v) Θ F$

Order of decreasing acidity of the following is

(I) HCOOH

(II) ${C H}_{3} C O O H$

(III) ${C l}_{2} C H C O O H$

(IV) ${C F}_{3} C O O H$

Order of decreasing acidity of

$(i) H C O O H (i i) C H_{3} C O O H (i i i) C l_{2} C H C O O H (i v) C F_{3} C O O H i s$

- I

- C N

- N O_{2}

- N H_{2}

- F

- S O_{3} H

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