Which of the following are true about the energy of the given d-orbitals of a tetrahedral complex?

A. $\mathrm{d}_{x y}=\mathrm{d}_{x z}>\mathrm{d}_{{x^2}-\mathrm{y}^2}$

B. $\mathrm{d}_{x y}=\mathrm{d}_{y z}>\mathrm{d}_{z^2}$

C. $\mathrm{d}_{x^2-y^2}>\mathrm{d}_{z^2}>\mathrm{d}_{x z}$

D. $\mathrm{d}_{{x^2}-y^2}=\mathrm{d}_{z^2}<\mathrm{d}_{x z}$

Choose the correct answer from the given below :

$\mathrm{R}_{\mathrm{f}}$ value for 2-methylpropene in a solvent system (Ethyl acetate + ether) is 0.42 . 2-methylpropene is treated with dilute $\mathrm{H}_2 \mathrm{SO}_4$ to give major organic product $(\mathrm{X})$. $R_f$ value for $(X)$ in the same solvent system under identical condition will be:

Given below are two statements :

Statement I : 2, 6-diethylcyclohexanone and 6-methyl-2-n-propylcyclohexanone are metamers.

Statement II : 2, 2, 6, 6 - tetramethylcyclohexanone exhibits keto-enol tautomerism.

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

Given below are two statements :

Statement I : Methane can be prepared by decarboxylation of sodium ethanoate, Kolbe's electrolysis of sodium acetate and reaction of $\mathrm{CH}_3 \mathrm{MgBr}$ with water.

Statement II : Methane cannot be prepared from unsaturated hydrocarbons and by Wurtz reaction.

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