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

V > IV > II > I > III

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II > IV > III > I > V

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IV > V > III > II > I

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V > IV > III > II > I

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Solution

The correct option is B II > IV > III > I > V
$- N O_{2}$ group at para position shows -R effect and increases the acidic strength while does not exhibit -R at meta position, $- O C H_{3}$ is +R group it decreases the acidic character when more when present in para position.

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Similar questions

Q. Mark the correct order of decreasing acidic strength of the following compounds:

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. Which among the following represents the correct decreasing order of acidic strength for the following compounds?

Q. Arrange the following oxides in the decreasing order of their acidic strengths.

I . Z n O

I I . K_{2} O

I I I . P_{2} O_{5}

I V . M g O

Arrange the following compounds in order of decreasing acidity:

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

The correct option is B II > IV > III > I > V−NO2 group at para position shows -R effect and increases the acidic strength while does not exhibit -R at meta position, −OCH3 is +R group it decreases the acidic character when more when present in para position.

The correct option is B II > IV > III > I > V
$- N O_{2}$ group at para position shows -R effect and increases the acidic strength while does not exhibit -R at meta position, $- O C H_{3}$ is +R group it decreases the acidic character when more when present in para position.