The following data were obtained during the first order thermal decomposition of SO₂Cl₂ at a constant volume:

SO₂Cl₂(g) → SO₂(g) + Cl₂(g)

Experiment Time/ s^-1 Total pressure/atm

1 0 0.4

2 100 0.7

Calculate the rate constant.

(Given: log 4 = 0.6021, log 2 =0.3010)

Write the name of monomers used for getting the following polymers:
(i) Bakelite
(ii) Neoprene

(a) Calculate Δ_rG⁰ for the reaction:

Mg(s) + Cu²⁺ (aq) → Mg²⁺(aq) + Cu(s)

(Given: E⁰_cell = +2.71V, 1F = 96500 C/mol)

(b) Name the type of cell which was used in Apollo space programme for providing electrical power.

What are emulsions? What are their different types? Give one example of each type.

Give reasons for the following:

(i) (CH₃)₃P=O exists but (CH₃)₃N=O does not

(ii) ) Oxygen has less electron gain enthalpy with negative sign than sulphur.

(iii) H₃PO₂ is a stronger reducing agent than H₃PO₃