The correct order of the rate of the reaction for the following reaction with respect to nucleophiles is :

${CH_3Br + Nu^- \longrightarrow CH_3Nu + Br^-}$

By usual analysis, 1.00 g of compound (X) gave 1.79 g of magnesium pyrophosphate. The percentage of phosphorus in compound (X) is : (nearest integer)

(Given, molar mass in g mol⁻¹: O = 16, Mg = 24, P = 31)

Given below are two statements :

Statement I : Crystal Field Stabilization Energy (CFSE) of [Cr(H₂O)₆]²⁺ is greater than that of [Mn(H₂O)₆]²⁺.

Statement II : Potassium ferricyanide has a greater spin-only magnetic moment than sodium ferrocyanide.

In the light of the above statements, choose the correct answer from the options given below :

Given below are two statements :

Statement I : The correct order in terms of bond dissociation enthalpy is Cl₂ > Br₂ > F₂ > I₂.

Statement II : The correct trend in the covalent character of the metal halides is [SnCl₄ > SnCl₂], [PbCl₄ > PbCl₂] and [UF₄ > UF₆].

In the light of the above statements, choose the correct answer from the options given below :