Chemistry - Structure of Atom
Practise 12 MHT-CET (PCB) previous year questions on Structure of Atom, compiled from papers in 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty MHT-CET (PCB) tests.
Structure of Atom has been asked in 1 of the 1 years of MHT-CET (PCB) papers analysed (2026), with 12 questions in all. 50% of them were easy, 50% moderate and 0% tough. Most of its questions came from 2026, with 12 questions that year. In 2026 it had 12 questions across 11 papers, about 1.1 per paper.
The chapter's 6 topics are not weighted equally: Dual Behaviour of Matter and Heisenberg Uncertainty Principle (4 questions, 33%), Electronic configuration (3 questions, 25%), and Quantum mechanical model (2 questions, 17%) have been asked the most.
- 1How many total number of s and p electrons are respectively present in ?26 Apr, 2026 (M)Electronic configuration
- 2Calculate the energy associated with an electron in the first orbit of hydrogen atom?25 Apr, 2026 (M)Bohr's model
- 3Which of the following elements has an electronic configuration, ?25 Apr, 2026 (M)Electronic configuration
- 4Calculate the de-Broglie wavelength of an electron having velocity [ , mass of an electron ]25 Apr, 2026 (E)Dual Behaviour of Matter and Heisenberg Uncertainty Principle
- 5Find the wave number of the line in the Lyman series of H spectrum. (R Rydberg constant)24 Apr, 2026 (M)Hydrogen spectrum
- 6Identify the pair of atoms of elements as isotones from the following.24 Apr, 2026 (E)Atomic Mass and Atomic Size
- 7Calculate the energy per mole of photons of red light with a wavelength nm. [ Js, m/s.]23 Apr, 2026 (M)Dual Behaviour of Matter and Heisenberg Uncertainty Principle
- 8What is the total number of electrons present in completely filled 3s, 3p, and 3d subshell having same value of magnetic quantum number?23 Apr, 2026 (E)Quantum mechanical model
- 9Which of the following representation of atomic orbitals is CORRECT regarding dependance of orbital energy on (n+l) rule?22 Apr, 2026 (M)Electronic configuration
- 10Visible light has a wavelength of nm. Calculate its frequency in hertz.22 Apr, 2026 (E)Dual Behaviour of Matter and Heisenberg Uncertainty Principle
- 11Identify a correct set of quantum numbers that represents the highest energy of an electron in an orbital from following.21 Apr, 2026 (M)Quantum mechanical model
- 12Calculate the wavelength, wavenumber of photon having its energy .21 Apr, 2026 (E)Dual Behaviour of Matter and Heisenberg Uncertainty Principle
Frequently Asked Questions
1.How many questions are available for Structure of Atom?
This chapter includes 12 questions compiled from MHT-CET (PCB) papers in 2026.
2.Are these questions only from MHT-CET (PCB), or from other exams too?
These are MHT-CET (PCB) questions specifically for the Structure of Atom chapter. Questions from other exams like NEET or AIIMS are organised separately under their respective exam sections.
3.Is Structure of Atom an important chapter for MHT-CET (PCB) Chemistry?
Structure of Atom has appeared in 1 of the 1 year of MHT-CET (PCB) papers covered here, with 12 questions across 11 papers - about one per paper it appears in.
4.What is the difficulty level of Structure of Atom questions in MHT-CET (PCB)?
Of the 12 questions analysed for this chapter, 50% are easy, 50% moderate and 0% tough. 2026 had the most, with 12 questions.
5.Which topics in Structure of Atom should I focus on?
These topics have carried the most weightage in Structure of Atom:
- Dual Behaviour of Matter and Heisenberg Uncertainty Principle - 4 questions (33%)
- Electronic configuration - 3 questions (25%)
- Quantum mechanical model - 2 questions (17%)
6.Is Structure of Atom's weightage in MHT-CET (PCB) going up or down?
Across all 11 papers analysed, Structure of Atom has averaged about 1.1 questions per paper. In 2026, that average has stayed about the same, at about 1.1 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.