as p solution Table A: Mixing of Solution A and solution B eport sheet CTable D)

Question

as p solution Table A: Mixing of Solution A and solution B eport sheet CTable D). es Solution A Solution B Test Tube no. Chlorine bleach (CIo) and 2-4 drops of6Drops of o.1 MFeNH), so. HC Chlorine bleach (CIO) and 2-4 drops of 6M 2HCI Add 4 drops of starch solution followed by drops of 0.I MKI irecxty white nce of nto 50 3 0.01 M KMnO, and drops of 6 MH SO4 Add Drops of 0.1 MFe(NHs) SO 4 0.01 M KMnO4 and drops of 6 MH2SO4 Add Drops of 1M K C,O 5 0.1 M H,0, and drops of 6 M H.SO Add Drops of 0.1 MFe(NH4)h SO Add 4 drops of starch solution followed Record 60.I M H,O, and 2-4 drops of 6 MIH,SO, bydros o. MK Page 61

Explanation / Answer

Mixing of solutions

Part A : Solution A mixed with solution B

Table

1. Solution A : Chlorine bleach and HCl, Solution B : Fe(NH4)2(SO4)2

half-reactions,

Fe2+ + e- <==> Fe3+

2ClO- + 2H+ + 2e- <==> Cl2 + 2H2O

2. Chlorine bleach and HCl, Solution B : starch and KI

half-reactions,

2I- <==> I2 + 2e-

2ClO- + 2H+ + 2e- <==> Cl2 + 2H2O

3. KMnO4 and H2SO4 Solution B : Fe(NH4)2(SO4)2

half-reactions,

MnO4- + 8H+ + 5e- <==> Mn2+ + 4H2O

Fe2+ <==> Fe3+ + e-

4. KMnO4 and H2SO4, Solution B : K2C2O4

half-reactions,

MnO4- + 8H+ + 5e- <==> Mn2+ + 4H2O

C2O4^2- <==> 2CO2 + 2e-

5. Solution A : H2O2 and H2SO4, Solution B : Fe(NH4)2(SO4)2

half-reactions,

Fe2+ <==> Fe3+ + e-

H2O2 + 2H+ + 2e- <==> 2H2O

6. solution A : H2O2 and H2SO4, Solution B : starch and KI

2I- <==> I2 + 2e-

H2O2 + 2H+ + 2e- <==> 2H2O

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