1 gm sample of KClO_3 was heated under such condition that a part of it decomposed according to the equation (1

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Q 1210467319.     1 gm sample of KClO_3 was heated under such condition that a part of it decomposed according to the equation

(1) 2 KClO_3 -> 2KCl + 3O_2

and remaining underwent change according to the equestion .

(2) 4KClO_3 -> 3KClO_4 + KCl

If the amount of O_2 evolved was 112 ml at 1 atm and 273 K . Calculate the % by weight of KClO_4 in the resideue
A

59.7%

B

62.5%

C

58%`

D

None of these

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