The effect of the rotational excitations of CHD3 (v(1) = 1, vertical bar J,K >) in reaction with the Cl atom was investigated in a crossed-beam, product-imaging experiment over the collisional energy (E-c) range 1-6 kcal mol(-1). It was found that the initial J- and K-selections affect only the total reactivity, not the more detailed product-state and angular distributions-a surprising result that defies conventional wisdom. Although the higher reactivity with increasing J states could be understood as a result of a wider range of attack angles near the barrier, the observed K-propensity of sigma(vertical bar JO >) < sigma(vertical bar JJ >) for J = 1 at E-c < 2 kcal mol(-1), opposite to that reported previously at higher E-c's, is perplexing and yet to be explained.