In which one of the following , the number of protons is greater than neutrons but number of protons is less than the number of electrons

Options

A. `D_(3)O^(+)`
B. `SO_(2)`
C. `H_(2)O`
D. `OH^(-)`

Answer

D

Explanation

No. of protons is less than the no. of electrons. So the ion to be a negative ion.
The no. of protons is greater than neutrons. So H atom should be present.
No. of protons in `OH^(-)=8+1=9`
No. of neutrons in `OH^(-)=8`
No. of electrons in `OH^(-)=9+1=10`.