(A) The reduction reaction,
`Cr_(2)O_(3)+2Al to Al_(2)O_(3)+2Cr, DeltaG^(0)=-421KJ`
is not possible at room temperature
(R ) Certain amount of activation energy is essential for the reaction to make it thermodynamically feasible.
A. If both (A) and (R ) are correct and (R ) is the correct explantion of (A )
B. If both (A) and (R ) are correct and (R ) is not the correct explantion of (A )
C. If (A) is correct but (R ) is incorrect
D. If (A) is incorrect but (R ) is correct
