MCQ
Compound $(A)$ is


- A

- ✓

- C

- D







Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(A)$ Kinetic energy of electron is $\propto \frac{ Z ^{2}}{ n ^{2}}$.
$(B)$ The product of velocity (v) of electron and principal quantum number (n), 'vn' $\propto Z ^{2}$.
$(C)$ Frequency of revolution of electron in an orbit is $\propto \frac{ Z ^{3}}{ n ^{3}}$.
$(D)$ Coulombic force of attraction on the electron is $\propto \frac{ Z ^{3}}{ n ^{4}}$.
Choose the most appropriate answer from the options given below :