Which one of the following on ozonolysis followed by oxidation will give adipic acid?

Compound $(X)$ will be:
Compound $(X) \xrightarrow[Pt]{5H_2} \text{Saturated compound}$
Compound $(X) \xrightarrow{AgNO_3} \text{Precipitate}$
Compound $(X) \xrightarrow[Me_2S]{O_3} OHC-CH_2-CH_2-CO-CHO + HOOC-CHO + HCOOH + OHC-CHO$

Given below are two statements for the following reaction sequence.
Statement $I$: Compound $'Z'$ will give yellow precipitate with $NaOI$.
Statement $II$: Compound $'Q'$ has two different types of $'H'$ atoms (aromatic : aliphatic) in the ratio $1 : 3$.
In the light of the above statements, choose the correct answer from the option given below:

Which of the following is not a mixture of hydrocarbons?

Total number of hydroxyl groups present in a molecule of the major product $P$ is. . . . . . . .

Identify the final product $(B)$ in the following reaction sequence:
$1\text{-bromo-}2\text{-methylcyclobutane}$ $\xrightarrow{\text{alc. KOH}} A$ $\xrightarrow{\text{ozonolysis}} B$