**Question: **The correct statement about probability density (except at infinite distance from nucleus) is :

It $\mathrm{cn}$ be negative for $2 \mathrm{p}$ orbital

It can be zero for $3 \mathrm{p}$ orbital

It can be zero for $1 \mathrm{~s}$ orbital

It can never be zero for $2 \mathrm{~s}$ orbital

Correct Option: , 2

**Solution:**