The correct order of nucleophile in decreasing order of $S_{N^{2}}$ reactivity is

I > I I > I I I > I V > V

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I I > I I I > I V > V > I

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I I > I I I > V > I V > I

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I > I V > V > I I I > I I

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Solution

The correct option is A $I > I I > I I I > I V > V$
Rate of reaction is directly proportional to conc. of substrate and conc.of nucleophiles, stability of transition state, positive charge density of carbon, EWG, -I, -R
Rate of reaction is inversely proportional to ERG, steric hindrance, +R
Primary > secondary > Tertiary.
$∴$ I > II > III > IV > V.

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Similar questions

Predict the order of reactivity of the following compounds in dehydrohalogenation.

Mark the correct order of decreasing acid strength of the following compounds.

(a) V > IV > II > I > III
(b) II > IV > I > III > V
(c) IV > V > III > II > I
(d) V > IV > III > II > I

Q. Arrange the following alcohols in the decreasing order of their ease of dehydration with

H_{2} S O_{4}

Arrange the following carbocations in decreasing order of stability

M e_{3} C O^{⊖}

ii.

M e O^{⊖}

iii.

M e C H_{2} O^{⊖}

iv.

M e_{2} C H O^{⊖}

v. Refer image.

The decreasing order of

{S N}_{2}

reactivity of alkoxide nucleophiles:

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The correct order of nucleophile in decreasing order of SN2 reactivity is

The correct order of nucleophile in decreasing order of $S_{N^{2}}$ reactivity is