GATE CY 2024 Question Paper (03-Feb-2024) (Shift 1)

Borax on treatment with NaOH and $H_2{O}_2$ formsX. The compound X on reaction with PhCN at $60$ °C in methanol-water mixture gives Y as the major product.
Xand Y, respectively, are

In the EPR room temperature, the total number of hyperfine splitting signals is

The heptacity of allyl and Cp and the ligation mode of NO in the thermodynamically stable complexes
$[({\eta }^x-allyl)Ru(CO{)}_2(NO)]$ and $[({\eta }^y-Cp)Ru(CO{)}_2(NO)]$,
respectively, are
(The heptacity of allyl and Cp are denoted by ${\eta }^x$ and ${\eta }^y$, respectively.)

In the following reactions, the structures of I, II, and III, respectively, are

Consider the following ${}^{1}H$ -NMR ($400$ MHz, DMSO-$d_6$) data of a compound:
$\delta$ in ppm: $3.85$ (s, $6H$), $6.73$ (t, $J=2.2$ Hz, $1H$), $7.1$ (d, $J=2.2$ Hz, $2H$), and $13.05$ (brs, $1H$).
The compound is