Balancing Redox Reaction

Q. 50 ml of $H_2{O}_2$ solution when titrated with 0.1 M $KMn{O}_4$ solution in acidic medium, volume required is 40 ml. Volume strength of $H_2{O}_2$ solution is

1. 11.2
2. 22.4
3. 1.12
4. 2.24

Q. Balance the following and choose the quantity which is the sum of the coefficients of reactants and products:
$PtC{l}_4+Xe{F}_2\to Pt{F}_6+ClF+Xe$

1. 16
2. 13
3. 18
4. 12

Q. Which is the correct expression of van't Hoff factor for association of electrolyte?
Here,
n is the number of molecules associate to form n-mer
$\beta$ is the degree of dissociation

1. $i=1+\left[\frac{1}{n}-1\right]\beta$
2. $i=2+\left[\frac{1}{n}-1\right]\beta$
3. $i=1+\left[\frac{1}{n}+1\right]\beta$
4. $i=1+[n-1]\beta$

Q. $\underset{–}{X}M{n}_2^{7+}+\underset{–}{Y}{O}_7^{2-}\to \underset{–}{Z}M{n}^{4+}+\underset{–}{A}{O}_2$
X, Y, Z and A are stoichiometric coefficients.
Here, X, Y, Z and A are respectively

1. 20, 12, 56, 42
2. 12, 28, 42, 56
3. 44, 28, 12, 56
4. None of these

Q. Which is the correct expression of van't Hoff factor for association of electrolyte?
Here,
n is the number of molecules associate to form n-mer
$\beta$ is the degree of dissociation

1. $i=2+\left[\frac{1}{n}-1\right]\beta$
2. $i=1+[n-1]\beta$
3. $i=1+\left[\frac{1}{n}+1\right]\beta$
4. $i=1+\left[\frac{1}{n}-1\right]\beta$

Q.

Pt(s) | Sn²⁺ (aq, 1 M), Sn⁴⁺ (aq, 1 M) || Fe²⁺ (aq, 1 M), Fe³⁺ (aq, 1 M) | Pt(s)
Anode reaction is:

1. Fe²⁺ → Fe³⁺ + 1e^–

2. Pt → Pt²⁺ + 2e^–

3. Sn²⁺ → Sn⁴⁺ + 2e^–

4. Pt → Sn²⁺ + 2e^–

Q. $\underset{–}{X}KMn{O}_4+\underset{–}{Y}{K}_2{C}_2{O}_4+\underset{–}{Z}{H}_{2}S{O}_4\to \underset{–}{A}Mn{0}_4+\underset{–}{B}C{0}_2+6K_{2}S{O}_4+\underset{–}{S}{H}_{2}O$
X, Y, Z, A, B and S are stoichiometric coefficients.
Here X, Y, Z, A and B are respectively

1. 2, 5, 8, 2, 10
2. 2, 4, 9, 4, 10
3. 5, 9, 12, 4, 10
4. None of these