Identify the correct statement-

Options

A. standard state of bromine (`25^(@)C,1atm`) is `Br_(2)(g)`
B. C(graphite, s)`toC` (diamond, s), here `DeltaH ne0`
C. standard enthalpy change for the reaction `N_(2)(g)+O_(2)(g) to 2NO(g)` at `25^(@)C` and 1 atm is standard enthalpy of formation of NO(g)
D. at a particular temperature and pressure, if `DeltaH=xkJ` for the reaction `A+3B to 2C` then `DeltaH=-(x)/(2)` kJ for the reaction `Cto(1)/(2)A+(3)/(2)B`

Answer

B, D