List of top Chemistry Questions on Equilibrium constants for homogeneous reactions asked in GATE XL

The CORRECT option(s) of Y for the following reaction is/are
The CORRECT option(s) of Y for the following reaction is/are
The CORRECT option(s) of Y for the following reaction is/are
The CORRECT option(s) of Y for the following reaction is/are
The equilibrium constant for isomerization of 1-butene to trans-2-butene at 27°C is ________ (round off to one decimal place).