# Atomic Structure · Chemistry · MHT CET

Start Practice## MCQ (Single Correct Answer)

MHT CET 2023 14th May Evening Shift

Calculate the frequency if wavelength is $$750 \mathrm{~nm}$$.

MHT CET 2023 14th May Morning Shift

Find the number of orbitals and maximum electrons respectively present in $$\mathrm{M}$$-shell?

MHT CET 2023 14th May Morning Shift

Calculate radius of third orbit of $$\mathrm{He}^{+}$$.

MHT CET 2023 13th May Evening Shift

Which of the following electromagnetic radiations possesses lowest energy?

MHT CET 2023 13th May Evening Shift

Calculate the wave number of photon emitted during transition from the orbit of $$n=3$$ to $$n=2$$ in hydrogen atom $$\left(R_H=109677 \mathrm{~cm}^{-...

MHT CET 2023 13th May Morning Shift

Find the radius of fourth orbit of hydrogen atom if its radius of first orbit is $$\mathrm{R}$$ pm.

MHT CET 2023 12th May Evening Shift

Which from following coloured light has the highest energy?

MHT CET 2023 12th May Evening Shift

What is the radius of the fourth orbit of hydrogen atom?

MHT CET 2023 12th May Morning Shift

Calculate the frequency of blue light having wavelength $$440 \mathrm{~nm}$$.

MHT CET 2023 12th May Morning Shift

Which of following pairs is an example of isoelectronic species?

MHT CET 2023 11th May Evening Shift

Which of the following statements is NOT true about Bohr atomic model?

MHT CET 2023 11th May Evening Shift

Which from following elements is isoelectronic with $$\mathrm{Na}^{+}$$?

MHT CET 2023 11th May Morning Shift

Which from following equations is used to express the angular momentum of an electron in a stationary state?

MHT CET 2023 11th May Morning Shift

Which emission transition series is obtained when electron jumps from $$\mathrm{n}_2=\infty$$ to $$\mathrm{n}_1=1$$ ?

MHT CET 2023 10th May Evening Shift

What is the radius of fourth orbit of $$\mathrm{Be}^{+++}$$ ?

MHT CET 2023 10th May Evening Shift

What is angular momentum of an electron in fourth orbit of hydrogen atom?

MHT CET 2023 10th May Morning Shift

Which of the following species is NOT isoelectronic with neon?

MHT CET 2023 10th May Morning Shift

Identify the physical quantity that is measured in Candela.

MHT CET 2023 10th May Morning Shift

Identify degenerate orbitals from following for hydrogen atom.

MHT CET 2023 9th May Evening Shift

Which of the following statements is NOT true about Rutherford atomic model?

MHT CET 2023 9th May Evening Shift

What is the wave number of photon emitted during transition from orbit, $$\mathrm{n}=4$$ to $$\mathrm{n}=2$$ in hydrogen atom $$\left[R_H=109677 \math...

MHT CET 2023 9th May Morning Shift

Which from following rule / principle states that "No two electrons in an atom can have the same set of four quantum numbers"?

MHT CET 2023 9th May Morning Shift

Calculate the wavenumber of the photon emitted during transition from the orbit of $$n=2$$ to $$n=1$$ in hydrogen atom. $$\left[R_H=109677 \mathrm{~cm...

MHT CET 2021 24th September Evening Shift

What is maximum number of electrons accommodated in a subshell having azimuthal quantum number, $$\ell$$ = 2 ?

MHT CET 2021 24th September Morning Shift

How many values of magnetic quantum number are possible for each value of azimuthal quantum number?

MHT CET 2021 23rd September Evening Shift

What is the frequency of yellow light having wavelength $$580 \mathrm{~nm}$$ ?

MHT CET 2021 23th September Morning Shift

Two electrons occupying the same orbital are distinguished by

MHT CET 2021 22th September Evening Shift

What is the energy of an electron in stationary state corresponding to $$\mathrm{n}=2$$ ?

MHT CET 2021 22th September Morning Shift

The wavelength of blue light is $$480 \mathrm{~nm}$$. What is frequency of this light?

MHT CET 2021 21th September Evening Shift

What is the wavelength for a wave having frequency 50 Hz?

MHT CET 2021 21th September Morning Shift

The wavelength of a spectral line of caesium is $$460 \mathrm{~nm}$$. What is the frequency of spectral line?

MHT CET 2021 20th September Evening Shift

What is the value of frequency of radiation when transition occurs between two stationary states that differ in energy by $$\Delta \mathrm{E}$$ ?...

MHT CET 2021 20th September Morning Shift

Identify an orbital with the quantum numbers n = 4, $$l$$ = 3, m = 0.

MHT CET 2020 16th October Morning Shift

Identify the symbol used for water according to Dalton's atomic theory?