# Bohr’s Model for Hydrogen Atom MCQs with FREE PDF

We have the best collection of Bohr’s Model for Hydrogen Atom MCQs and answer with FREE PDF. These Bohr’s Model for Hydrogen Atom MCQs will help you to prepare for any competitive exams like: NEET, AIIMS, JEE Mains, JEE Advance, IIT JEE, JIPMER and other Exams at all levels – you just have to practice regularly.

## Bohr’s Model for Hydrogen Atom MCQs

#### 1. What’s the radius of 1st orbit of He+ atom?

a) 0.1058 nm

b) 0.2156 nm

c) 0.00529 nm

d) 0.02645 nm

Answer: 0.02645 nm

a) False

b) True

Answer: True

#### 3. Bohr’s model could not explain the ability of atoms to form molecules by ______

a) Attraction

b) Physical bonds

c) Chemical bonds

d) Polarity

Answer: Chemical bonds

a) 434 nm

b) 456 nm

c) 863 nm

d) 268 nm

Answer: 434 nm

a) True

b) False

Answer: False

#### 6. Which of the following is the value for Rydberg constant?

a) 2.95 x 10-18 J

b) -2.95 x 10-18 J

c) -2.18 x 10-18 J

d) 2.18 x 10-18 J

Answer: -2.18 x 10-18 J

a) mev2r

b) mevr2

c) mer

d) mevr

Answer: mevr

a) True

b) False

Answer: True

#### 9. The energy of 1st orbit in a hydrogen atom __________

a) 3.18×10–12 J

b) –2.18×10–18 J

c) –3.18×10–18 J

d) 2.18×10–18 J

Answer: –2.18×10–18 J

a) 153:50

b) 50:153

c) 153:100

d) 100:153

Answer: 50:153