Atomic Structure-Bohr Model of Hydrogen Atom (NEET Chemistry): Questions 1 - 4 of 4

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Question number: 1

» Atomic Structure » Bohr Model of Hydrogen Atom

MCQ▾

Question

One of the postulate Bohr’s atomic model is

Choices

Choice (4) Response

a.

The electron can move in only those circular orbits where the angular momentum is a whole number multiply of h/2 π

b.

Uncertainty in measurement is not due to lack of any experimental technique but due to nature of subatomic particle itself

c.

The emission and absorption of energy does not take place continuously but in the form of quantum.

d.

None of the above

Question number: 2

» Atomic Structure » Bohr Model of Hydrogen Atom

MCQ▾

Question

The total energy of electron of H- atom in a second quantum state is E2 . The total energy of He+ atom in the third quantum state is?

Choices

Choice (4) Response

a.

(49)E2

b.

(23)E2

c.

(169)E2

d.

(32)E2

Question number: 3

» Atomic Structure » Bohr Model of Hydrogen Atom

MCQ▾

Question

How many times does light travel faster in vacuum than an electron in Bohr first orbit of hydrogen atom?

Choices

Choice (4) Response

a.

97times

b.

67times

c.

137times

d.

13.7times

Question number: 4

» Atomic Structure » Bohr Model of Hydrogen Atom

MCQ▾

Question

What is the energy in ev required to excite the electron from n=1,ton=2 state in hydrogen atom? (n- principal quantum number).

Choices

Choice (4) Response

a.

10.2

b.

3.4

c.

13.6

d.

17

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