Deuterium is the isotope of hydrogen of mass number `2`, with a proton and a neutron in its nucleus. The chemistry of deuterium is nearly identical to the chemistry of hydrogen, except that `C-D` bond is slightly `(5.0 "KJ" //"mole")` stonger than the `C-H` bond. Reaction rates tend to be slower if a `C-D` bond as opposed to a `C-H` bond is broken in a rate limiting step. This effect on the rate is called a kinetic isotope effect.
`CH_(3)-overset(O) overset(||)(C)-CH_(3)overset(D_(2)O,D^(+))toX`

Options

A. `CD_(3)-overset(O) overset(||)(C)-CD_(3)`
B. `H_(2)C=overset(OD) overset(|)(C)-CH_(3)`
C. `H_(2)O=overset(OH)overset(|)(C)-CH_(3)`
D. `CH_(3)-overset(O)overset(||)(C)-CD_(3)`

Answer

A

Explanation

The following reaction are