1
JEE Advanced 2019 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
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 $$\psi $$?
A
It is a 4d state
B
The nuclear charge experienced by the electron in this state is less than 2e, where e is the magnitude of the electronic charge
C
It has 2 angular nodes
D
It has 3 radial nodes
2
JEE Advanced 2019 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
Which of the following statement(s) is(are) correct regarding the root mean square speed (Urms) and average translational kinetic energy (Eav) of a molecule in a gas at equilibrium?
A
Urms is inversely proportional to the square root of its molecular mass.
B
Urms is doubled when its temperature is increased four times.
C
Eavg is doubled when its temperature is increased four times.
D
Eavg at a given temperature does not depend on its molecular mass.
3
IIT-JEE 1999
MCQ (More than One Correct Answer)
+3
-0.75
Ground state electronic configuration of nitrogen atom can be represented by
A
IIT-JEE 1999 Chemistry - Structure of Atom Question 47 English Option 1
B
IIT-JEE 1999 Chemistry - Structure of Atom Question 47 English Option 2
C
IIT-JEE 1999 Chemistry - Structure of Atom Question 47 English Option 3
D
IIT-JEE 1999 Chemistry - Structure of Atom Question 47 English Option 4
4
IIT-JEE 1998
MCQ (More than One Correct Answer)
+2
-0.5
Decrease in atomic number is observed during
A
alpha emission
B
beta amission
C
positron emisson
D
electron capture
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