Point out the wrong statement in relation to the structure of benzene.

Treatment of benzene with $CO / HCl$ in the presence of anhydrous $AlCl_3 / CuCl$ followed by reaction with $Ac_2O / NaOAc$ gives compound $X$ as the major product. Compound $X$ upon reaction with $Br_2 / Na_2CO_3$,followed by heating at $473 \ K$ with moist $KOH$ furnishes $Y$ as the major product. Reaction of $X$ with $H_2 / Pd-C$,followed by $H_3PO_4$ treatment gives $Z$ as the major product.
$(1)$ The compound $Y$ is
$(2)$ The compound $Z$ is
Identify the correct options for $(1)$ and $(2)$ respectively.

The correct order of reactivity in electrophilic substitution reaction of the following compounds is:

The major product of the following reaction is:
$Glucose \xrightarrow[(ii) \ Mo_2O_3, \ 773 \ K, \ 10-20 \ atm]{(i) \ HI, \ \Delta} ?$

$C-C$ bond length in benzene is $...... \ \mathring{A}$

Which of the following compounds will undergo electrophilic substitution more readily than benzene?