In the given reaction,$[X]$ will be:

Answer the following by appropriately matching the lists based on the information given in the paragraph. List-$I$ includes starting materials and reagents of selected chemical reactions. List-$II$ gives structures of compounds that may be formed as intermediate products and/or final products from the reactions of List-$I$.
$(1)$ Which of the following options has correct combination considering List-$I$ and List-$II$?
$(1) (III), (T), (R)$ $(2) (IV), (Q), (R)$ $(3) (III), (T), (U)$ $(4) (IV), (Q), (U)$
$(2)$ Which of the following options has correct combination considering List-$I$ and List-$II$?
$(1) (I), (Q), (R)$ $(2) (II), (S), (U)$ $(3) (II), (P), (S), (T)$ $(4) (I), (S), (Q), (R)$
Give the answer for question $(1)$ and $(2)$.

In the given reaction: $NH_2-CH_2-CH_2-NH_2 + C_2H_5OOC-COOC_2H_5 \xrightarrow{\text{Pyridine}} [X]$,$[X]$ will be:

The reaction sequence$(s)$ that would lead to $o$-xylene as the major product is (are)

What are $X, Y, Z$ in the following reaction sequence?
$CH_3-CH=CH-CH_3$ $\xrightarrow{X} CH_3COOH$ $\xrightarrow{Y} CH_3COCl$ $\xrightarrow[\text{Anhy. } AlCl_3]{\text{Benzene}} Z$

Arrange the following compounds in the correct order of their boiling points:
$(I) \, CH_3CH_2CH_2CH_2OH$
$(II) \, CH_3CH_2CH_2CHO$
$(III) \, CH_3CH_2CH_2COOH$