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NEET UG CHEMISTRY MCQ: STRUCTURE OF ATOM

1 Hard

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Analyzing +4 | -1

According to Bohr’s atomic theory,
I. kinetic energy of electron is

\propto \,\,\frac{{{Z^2}}}{{{n^2}}}

II. the product of velocity

(v)\,

of electron and principal quantum number

(n),\,\,'vn' \propto {Z^2}

.
III. frequency of revolution of electron in an orbit is

\propto \frac{{{z^3}}}{{{n^3}}}

IV. coulombic force of attraction on the electron is

\propto \frac{{{z^3}}}{{{n^4}}}

Choose the most appropriate answer from the options given below.

View answer and explanation

Correct option: D

I and IV

Option D (I and IV) is correct. The kinetic energy is proportional to

Z^2/n^2

and the coulombic force is proportional to

Z^3/n^4

.

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{p}_{{x}}

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