Question: Deuterium resembles hydrogen in properties but :
reacts slower than hydrogen
reacts vigorously than hydrogen
reacts just as hydrogen
emits $\beta^{+}$particles
Correct Option: 1
Solution:
The bond dissociation energy of $\mathrm{D}_{2}$ is greater than $\mathrm{H}_{2}$ and therefore $\mathrm{D}_{2}$ reacts slower than $\mathrm{H}_{2}$.
