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Q.

When Cl2 is bubbled through aqueous KOH, a firework explosive (A) is formed along with KCl and H2O, Correct statement/s is/are about this reaction is

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a

323g of A will be formed by 150L of Cl2 at 980mm of Hg at 298K

b

7.9 moles of A is formed under the condition B option

c

Oxidation state of Cl in A is +5

d

Oxidation state of K in A is –1

answer is A, B.

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Detailed Solution

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6KOH+3Cl2KClO3(A)+5KCl+3H2O  

From ,  Pv=nRT P= 980760atm    V= 150mL= 0.15L  R=0.0891L.atm.mol-1K-1.T=298K n=PVRT=980 X 150 760 X0.0821 X298=7.9 mol  moles of KClO3=13X moles of Cl2.                             = 13X7.9                             = 2.633 moles Mass of KClO3 = 2.633 X122.5                                =322.58g 

 

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