Give appropriate reasons for the following 
1.metal fluoride are more ionic than metal fluoride 
2.Perchloric acid stronger than sulphuric acid 
3.Addission of  chloride to KI solution  gives it brown colour  but excsess of it gives colourless

Dear student,
1. The question is incorrect.
2. The conjugate base of perchloric acid is more stable than sulfuric acid and hence it is less stable. The stability is due to presence of more conjugation in conjugate base of perchloric acid.
3. Cl2 oxidises Ito I2 which is brown in colour but excess of it will release HIO3 which is colourless. So it turns colorless ultimately.

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sorry the text is not clear i cant understand it
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clear nhi dikh rha h
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