Question

The number of correct statements from the following ____ 

A. For 1s orbital, the probability density is maximum at the nucleus. 

B. For 2s orbital, the probability density first increases to maximum and then decreases sharply to zero. 

C. Boundary surface diagrams of the orbitals encloses a region of 100% probability of finding the electron. 

D. p and d-orbitals have 1 and 2 angular nodes respectively. 

E. Probability density of p-orbital is zero at the nucleus.

Answer 1

Correct answer is 3

A, D and E statements are correct.

For 2s orbital, the probability density first decreases and then increases. 

At any distance from nucleus the probability density of finding electron is never zero and it always have some finite value.