GATE CY 2026 Question Paper (07-Feb-2026) (Shift 2)

The correct statement(s) for a surface catalyzed unimolecular gaseous reaction is(are)

Consider the following reaction sequence, where A and B are the major products. In proton-decoupled ${}^{13}C$ NMR spectra, the total number of carbon signals observed for A and B is ______ (in integer).

On heating, the compound Z undergoes a series of 1,5-H/D shifts to give a mixture of its isomers. The total number of isomers present in the mixture (including Z) is ______ (in integer).

The sum of bond orders of metal–metal bonds in $[O{s}_{2}C{l}_8{]}^{2-}$, $[R{e}_{2}C{l}_8{]}^{2-}$, $[W_2(NM{e}_2{)}_6]$ and $[Mo(C_5{H}_5)(CO{)}_2{]}_2$ is ______ (in integer).

The sum of the number of $\alpha$ -particles and $\beta$ -particles emitted in the nuclear decay process, ${}_{92}^{238}U{\to }_{82}^{206}Pb$, is ______ (in integer).