A red litmus paper when dipped in an aqueous solution of potassium acetate turned blue. Arrange the following steps in proper sequence to explain the above observation.
(a) Identification of spectator ions.
(b) Identification of free ions which caused the colour change of the litmus paper.
(c) Identification of positive and negative radicals.
(d) Writing the net reaction taking place
(e) Writing ionic equation for the reaction of positive and negative radicals with water.

c e a d b

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c a e d b

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e a d c b

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e c a d b

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Solution

The correct option is A c e a d b
A red litmus paper when dipped in an aqueous solution of potassium acetate turned blue. The observations are as follows:
(i) Identification of positive and negative radicals.
(ii) Writing ionic equation for the reaction of positive and negative radicals with water.
(iii) Identification of spectator ions.
(iv) Writing the net reaction taking place.
(v) Identification of free ions which caused the colour change of the litmus paper.

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