Consider the following two statemets
Line spectra contain information about atoms.
Band spectra contain information about molecules

Options

A. Both A and B are wrong
B. A is correct but B is wrong
C. B is correct but A wrong
D. Both A and B are correct

Answer

To solve the question regarding the two statements about line spectra and band spectra, we can break down the solution into the following steps:

### Step 1: Understand Line Spectra
- **Definition**: Line spectra are produced when electrons in an atom absorb energy and jump to higher energy levels. When they return to their original or lower energy levels, they emit light at specific wavelengths.
- **Characteristics**: The emitted light creates discrete lines on a spectrum, which are unique to each element. This means that line spectra contain information about the atomic structure and energy levels of the atoms.

### Step 2: Understand Band Spectra
- **Definition**: Band spectra are produced by molecules that undergo vibrational or rotational transitions. When a molecule absorbs energy, it can vibrate or rotate, leading to the emission of light.
- **Characteristics**: The emitted light results in a group of closely spaced spectral lines, known as bands. These bands provide information about the molecular structure and the types of bonds present in the molecule.

### Step 3: Analyze the Statements
- **Statement A**: "Line spectra contain information about atoms."
- This statement is **correct** because line spectra are indeed associated with atomic transitions.

- **Statement B**: "Band spectra contain information about molecules."
- This statement is also **correct** as band spectra arise from molecular transitions.

### Step 4: Conclusion
- Since both statements A and B are correct, the correct answer to the question is that both statements provide accurate information regarding line spectra and band spectra.

### Final Answer:
Both A and B are correct.