Question

Assertion : Hydrogen has only one electron in its orbit. But it produces several spectral lines.

Reason: There are many excited energy levels available.

(a) Both A and R are true and R is the correct explanation of A  

(b) Both A and R are true but R is not correct explanation of A  

(c) A is true but R is false  

(d) A and R are false

Answer 1

Correct option (a) Both A and R are true and R is the correct explanation of A  

Explanation:

Hydrogen (Z = 1); 1s¹

This single electron can be expected to go in higher energy Ievels and when de-excited it gives out different spectral lines e.g., Balmer, Paschen, etc.