Which of the following reduction reaction CANNOT be carried out with coke?

[Ti(H₂O)₆]³⁺ absorbs light of wavelength 498 nm during a d $$-$$ d transition. The octahedral splitting energy for the above complex is ____________ $$\times$$ 10^$$-$$19 J. (Round off to the Nearest Integer). h = 6.626 $$\times$$ 10^$$-$$34 Js; c = 3 $$\times$$ 10⁸ ms^$$-$$1

A 5.0 m mol dm^$$-$$3 aqueous solution of KCl has a conductance of 0.55 mS when measured in a cell of cell constant 1.3 cm^$$-$$1. The molar conductivity of this solution is ___________ mSm² mol^$$-$$1. (Round off to the Nearest Integer).

At 25$$^\circ$$C, 50 g of iron reacts with HCl to form FeCl₂. The evolved hydrogen gas expands against a constant pressure of 1 bar. The work done by the gas during this expansion is _________ J. (Round off to the Nearest Integer).

[Given : R = 8.314 J mol^$$-$$1 K^$$-$$1. Assume, hydrogen is an ideal gas] [Atomic mass of Fe is 55.85 u]