JEE Advanced 2022 Paper 1 Online

MCQ (More than One Correct Answer)

-2

For diatomic molecules, the correct statement(s) about the molecular orbitals formed by the overlap of two $2 p_{z}$ orbitals is(are)

$\sigma$ orbital has a total of two nodal planes.

$\sigma^{*}$ orbital has one node in the $x z$-plane containing the molecular axis.

$\pi$ orbital has one node in the plane which is perpendicular to the molecular axis and goes through the center of the molecule.

$\pi^{*}$ orbital has one node in the $x y$-plane containing the molecular axis.

JEE Advanced 2019 Paper 2 Offline

MCQ (More than One Correct Answer)

-1

The ground state energy of hydrogen atom is $$-$$13.6 eV. Consider an electronic state $$\psi $$ of He⁺ whose energy, azimuthal quantum number and magnetic quantum number are $$-$$3.4 eV, 2 and 0, respectively.

Which of the following statement(s) is(are) true for the state $$\psi $$?

It is a 4d state

The nuclear charge experienced by the electron in this state is less than 2e, where e is the magnitude of the electronic charge

It has 2 angular nodes

It has 3 radial nodes

JEE Advanced 2019 Paper 1 Offline

MCQ (More than One Correct Answer)

-1

Which of the following statement(s) is(are) correct regarding the root mean square speed (U_rms) and average translational kinetic energy (E_av) of a molecule in a gas at equilibrium?

U_rms is inversely proportional to the square root of its molecular mass.

U_rms is doubled when its temperature is increased four times.

E_avg is doubled when its temperature is increased four times.

E_avg at a given temperature does not depend on its molecular mass.

IIT-JEE 1999

MCQ (More than One Correct Answer)

-0.75

Ground state electronic configuration of nitrogen atom can be represented by

IIT-JEE 1999 Chemistry - Structure of Atom Question 47 English Option 1

IIT-JEE 1999 Chemistry - Structure of Atom Question 47 English Option 2

IIT-JEE 1999 Chemistry - Structure of Atom Question 47 English Option 3

IIT-JEE 1999 Chemistry - Structure of Atom Question 47 English Option 4

JEE Advanced Subjects