JEE MAINS PRACTICE · Chemistry
Structure of Atom
392 practice questions for JEE Mains Practice — 298 easy · 88 medium · 6 hard. Every question is graded instantly with a step-by-step solution when you miss it.
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MCQ
What is the total number of electrons present in completely filled 3s, 3p, and 3d subshell having same value of magnetic quantum number?
MCQ
Calculate the wavelength, wavenumber of photon having its energy $8.0 \times 10^{-19}\ \text{J}$. $[h = 6.626 \times 10^{-34}\ \text{J s},\ C = 3.0 \times 10^8\ \text{m s}^{-1}]$
MCQ
How many total number of s and p electrons are respectively present in $\text{Cl}^-$ ?
MCQ
Find the wave number of the $4^{\text{th}}$ line in the Lyman series of H spectrum. (R $=$ Rydberg constant)
MCQ
Calculate the de-Broglie wavelength of an electron having velocity $1000\ \text{ms}^{-1}$ [$h = 6.626 \times 10^{-34}\ \text{js}$, mass of an electron $= 9.1 \times 10^{-31}\ \text{kg}$]
MCQ
Visible light has a wavelength of $700$ nm. Calculate its frequency in hertz.
MCQ
Select the correct options according to Hund's rule and Pauli exclusion principle. Codes
MCQ
Orbital is
MCQ
Which of the following transitions involves maximum amount of energy?
MCQ
If uncertainty in position and velocity are equal, then uncertainty in momentum will be
MCQ
The ratio of de-Broglie wavelengths for electron accelerated through 200 V and 50 V is
MCQ
Which of the following conclusion is correct regarding photoelectric effect?