300+ TOP MCQs on Structure of Atom and Answers

NEET  Chemistry is the very imporatant paper in the Medical Entrance EXAM. So these NEET Chemistry MCQs with Answers for all Concepts as per the new syllabus. Practice daily with these NEET Chemistry objective questions on air pollution. NEET Chemistry Structure of Atom Multiple Choice Questions

MCQs on Structure of Atom :

1. How many orbitals can have the following set of quantum numbers, n = 3, l = 1, m1 = 0 ?
(A) 3
(B) 1
(C) 4
(D) 2

Answer

Answer: (b)

2. Electronic configuration of the outer shell of the element Gd with atomic number 64 is
(A) 4f4 5d5 6s1
(B) 4f3 5d5 6s2
(C) 4f5 5d4 6s1
(D) 4f7 5d1 6s2

Answer

Answer: (d)

3. Maximum number of electrons in a subshell can be
(A) 4l + 2
(B) 4l – 2
(C) 2n2
(D) 2l + 1

Answer

Answer: (a)

4. The orientation of atomic orbitals depends on their
(A) spin quantum number
(B) magnetic quantum number
(C) azimuthal quantum number
(D) principal quantum number

Answer

Answer: (b)

5. A gas X has Cp and Cratio as 1.4, at NTP 11.2 L of gas X will contain_______ number of atoms
(A) 1.2 × 1023
(B) 3.01 × 1023
(C) 2.01 × 1023
(D) 6.02 × 1023

Answer

Answer: (d)

6. Number of unpaired electrons in N2+
(A) 3
(B) 1
(C) 2
(D) 0

Answer

Answer: (b)

7. The excitation energy of a hydrogen atom from its ground state to its third excited state is
(A) 12.75 eV
(B) 0.85 eV
(C) 10.2 eV
(D) 12.1 eV

Answer

Answer: (a)

8. 3p orbital has _____ radial nodes
(A) three
(B) two
(C) one
(D) none

Answer

Answer: (c)

9. A 0.66 kg ball is moving with a speed of 100 m/s. Find its wavelength
(A) 6.6 × 10-34 m
(B) 6.6 × 10-32 m
(C) 1.0 × 10-32 m
(D) 1.0 × 10-35 m

Answer

Answer: (d)

10. Orbital angular momentum of p electrons is
MCQs on Structure of Atom for NEET 1

Answer

Answer: (c)

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