The correct order for acidity of the following hydroxyl compound is :

A. $$\mathrm{CH}_{3} \mathrm{OH}$$

B. $$\left(\mathrm{CH}_{3}\right)_{3} \mathrm{COH}$$

C.

D.

E.

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Incorrect method of preparation for alcohols from the following is:

Match List I with List II

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In Carius tube, an organic compound '$$\mathrm{X}$$' is treated with sodium peroxide to form a mineral acid 'Y'.

The solution of $$\mathrm{BaCl}_{2}$$ is added to '$$\mathrm{Y}$$' to form a precipitate 'Z'. 'Z' is used for the quantitative estimation of an extra element. '$$\mathrm{X}$$' could be