| List I | List II |
|---|---|
| (A) Radius of electron orbit | (I) directly proportional to n2 |
| (B) Angular momentum of electron | (II) directly proportional to n |
| (C) Velocity of electron | (III) inversely proportional to n |
| (D) Energy of electron | (IV) inversely proportional to n2 |
Considering Bohr’s atomic model for hydrogen atom :
(A) the energy of H atom in ground state is same as energy of He+ ion in its first excited state.
(B) the energy of H atom in ground state is same as that for Li++ ion in its second excited state.
(C) the energy of H atom in its ground state is same as that of He+ ion for its ground state.
(D) the energy of He+ ion in its first excited state is same as that for Li++ ion in its ground state.
Rearrange the following parts to form a coherent and meaningful sentence. Choose the correct option.
P: and industries are exploring the use of biodegradable alternatives
Q: as plastic pollution continues to pose a significant threat to the environment,
R: governments, environmental groups,
S: to reduce dependence on single-use plastics