GATE CY 2025 Question Paper (15-Feb-2025) (Shift-1)

Among the given options, the possible product(s) that can be obtained from the following reaction is/are

Choose the correct option(s) with regard to mechanism of the following transformation.

Consider two non-interacting particles confined to a one-dimensional box with infinite potential barriers. Their wavefunctions are ${\psi }_1$ and ${\psi }_2$ and energies are $E_1$ and $E_2$, respectively. The INCORRECT statement(s) about this system is/are

The thermodynamic criterion/criteria for a spontaneous process is/are

Xe and $F_2$ in 1:1 molar ratio when mixed in a closed flask and kept in the sunlight for a day, gave white crystals of a compound Q. Two equivalents of Q on reaction with one equivalent of $As{F}_5$ gave an ionic compound $X^{+}{Y}^{-}$ with the cation having two Xe atoms. The total number of lone pairs present on the cation $X^{+}$ is ______________(in integer).